diff --git a/.env.example b/.env.example
index 75db2a2..55820d9 100644
--- a/.env.example
+++ b/.env.example
@@ -39,3 +39,7 @@ SMTP_FROM_NAME=
 # Formulaire de contact
 CONTACT_EMAIL=
 CONTACT_FROM_EMAIL=
+
+# Logs Apache (onglet Recherches dans /admin)
+# Nom du fichier de log d'accès du vhost dans /var/log/apache2/
+APACHE_ACCESS_LOG=lan.acegrp.varlog-access.log
diff --git a/public/index.php b/public/index.php
index b9f361f..386f6c8 100644
--- a/public/index.php
+++ b/public/index.php
@@ -23,8 +23,10 @@ require_once BASE_PATH . '/src/helpers.php';
 require_once BASE_PATH . '/src/auth.php';
 require_once BASE_PATH . '/src/SiteSettings.php';
 require_once BASE_PATH . '/src/ArticleManager.php';
+require_once BASE_PATH . '/src/BookManager.php';
 
 $articles = new ArticleManager(BASE_PATH . '/data');
+$books    = new BookManager(BASE_PATH . '/data/books');
 
 // ─── Mode maintenance ──────────────────────────────────────────────────────
 if (file_exists(BASE_PATH . '/data/.maintenance')) {
@@ -41,7 +43,7 @@ $action = $_GET['action'] ?? 'list';
 $uuid   = $_GET['uuid']   ?? '';
 $slug   = $_GET['slug']   ?? '';
 
-$_noindexActions = ['create', 'edit', 'admin', 'categories', 'diff', 'add_files', 'import_image', 'import_image_step2', 'sources', 'profile', 'delete_file', 'delete_external_link', 'rename_category', 'delete_category', 'toggle_private_category', 'admin_save_site', 'not_found', 'add_feed', 'delete_feed', 'add_link', 'delete_link', 'reorder_links', 'react', 'comment', 'verify_comment', 'comment_moderate', 'comment_delete', 'comment_resend', 'create_tag_type', 'delete_tag_type', 'edit_tags'];
+$_noindexActions = ['create', 'edit', 'admin', 'categories', 'diff', 'add_files', 'import_image', 'import_image_step2', 'sources', 'profile', 'delete_file', 'delete_external_link', 'rename_category', 'delete_category', 'toggle_private_category', 'admin_save_site', 'not_found', 'add_feed', 'delete_feed', 'add_link', 'delete_link', 'reorder_links', 'react', 'comment', 'verify_comment', 'comment_moderate', 'comment_delete', 'comment_resend', 'create_tag_type', 'delete_tag_type', 'edit_tags', 'book_save', 'book_delete'];
 $metaRobots = in_array($action, $_noindexActions, true) ? 'noindex, nofollow' : null;
 unset($_noindexActions);
 
@@ -825,6 +827,13 @@ switch ($action) {
             $comments         = $commentMgr->forArticle($article['uuid']);
         }
 
+        // Contexte livre (navigation précédent/suivant si l'article fait partie d'un livre)
+        $bookContext = $books->findForArticle($article['slug'] ?? '');
+        if ($bookContext !== null) {
+            $bookContext['prev_article'] = $bookContext['prev'] !== null ? $articles->getBySlug($bookContext['prev']) : null;
+            $bookContext['next_article'] = $bookContext['next'] !== null ? $articles->getBySlug($bookContext['next']) : null;
+        }
+
         include BASE_PATH . '/templates/post_view.php';
         break;
 
@@ -2528,7 +2537,7 @@ switch ($action) {
                 exit;
             }
             require_once BASE_PATH . '/src/SearchLogParser.php';
-            $parser = new SearchLogParser();
+            $parser = new SearchLogParser('/var/log/apache2', apacheAccessLog());
             $adminData['search_terms']       = $parser->topTerms(100);
             $adminData['search_log_readable'] = $parser->isReadable();
         }
@@ -2539,6 +2548,21 @@ switch ($action) {
             $adminData['tagTypes']    = $articles->getTagTypes();
         }
 
+        if ($tab === 'books') {
+            if (!isAdmin()) {
+                http_response_code(403);
+                exit;
+            }
+            $adminData['books']        = $books->getAll();
+            $adminData['edit_book']    = null;
+            $adminData['all_articles'] = $articles->getAll();
+            usort($adminData['all_articles'], static fn ($a, $b) => strcmp($a['title'] ?? '', $b['title'] ?? ''));
+            $editBookSlug = trim($_GET['edit'] ?? '');
+            if ($editBookSlug !== '') {
+                $adminData['edit_book'] = $books->getBySlug($editBookSlug);
+            }
+        }
+
         include BASE_PATH . '/templates/admin.php';
         break;
 
@@ -3120,6 +3144,69 @@ switch ($action) {
         include BASE_PATH . '/templates/search.php';
         break;
 
+    case 'book':
+        $bookSlug = trim($_GET['book_slug'] ?? '');
+        $book = $books->getBySlug($bookSlug);
+        if (!$book) {
+            http_response_code(404);
+            ob_start();
+            ?>
+            <div class="container py-5 text-center">
+                <h1 class="h2 mb-3">Livre introuvable</h1>
+                <p class="text-muted mb-4">Ce livre n'existe pas ou a été supprimé.</p>
+                <a href="/" class="btn btn-primary">← Retour à l'accueil</a>
+            </div>
+            <?php
+            $content = ob_get_clean();
+            $title = '404 — ' . siteTitle();
+            $metaRobots = 'noindex, nofollow';
+            include BASE_PATH . '/templates/layout.php';
+            break;
+        }
+        $bookArticles = [];
+        foreach ($book['articles'] ?? [] as $aSlug) {
+            $a = $articles->getBySlug($aSlug);
+            if (!$a) {
+                continue;
+            }
+            if (!$a['published'] && !canDoOnArticle('view_drafts', $a)) {
+                continue;
+            }
+            $bookArticles[] = $a;
+        }
+        $allCats = $articles->getCategories();
+        include BASE_PATH . '/templates/book.php';
+        break;
+
+    case 'book_save':
+        requireAuth();
+        if (!isAdmin() || $_SERVER['REQUEST_METHOD'] !== 'POST') {
+            http_response_code(403);
+            exit;
+        }
+        $bSlug  = trim($_POST['slug'] ?? '');
+        $bTitle = trim($_POST['title'] ?? '');
+        $bDesc  = trim($_POST['description'] ?? '');
+        $bArts  = array_values(array_filter(array_map('trim', preg_split('/[\r\n]+/', $_POST['articles'] ?? ''))));
+        if ($bSlug !== '' && $bTitle !== '') {
+            $books->save(['slug' => $bSlug, 'title' => $bTitle, 'description' => $bDesc, 'articles' => $bArts]);
+        }
+        header('Location: /admin/books?saved=1&edit=' . rawurlencode($bSlug));
+        exit;
+
+    case 'book_delete':
+        requireAuth();
+        if (!isAdmin() || $_SERVER['REQUEST_METHOD'] !== 'POST') {
+            http_response_code(403);
+            exit;
+        }
+        $bSlug = trim($_POST['slug'] ?? '');
+        if ($bSlug !== '') {
+            $books->delete($bSlug);
+        }
+        header('Location: /admin/books?deleted=1');
+        exit;
+
     case 'not_found':
         $notFoundPath = trim(
             (string)(parse_url($_SERVER['REDIRECT_URL'] ?? $_SERVER['REQUEST_URI'] ?? '', PHP_URL_PATH) ?? ''),
diff --git a/src/SiteSettings.php b/src/SiteSettings.php
index c0570cd..1d9d08f 100644
--- a/src/SiteSettings.php
+++ b/src/SiteSettings.php
@@ -59,10 +59,19 @@ function siteLicenseUrl(): string
     return siteSettings()['site_license_url'] ?? 'https://creativecommons.org/licenses/by/4.0/';
 }
 
+function apacheAccessLog(): string
+{
+    $fromSettings = siteSettings()['apache_access_log'] ?? '';
+    if ($fromSettings !== '') {
+        return $fromSettings;
+    }
+    return (string)($_ENV['APACHE_ACCESS_LOG'] ?? getenv('APACHE_ACCESS_LOG') ?: 'lan.acegrp.varlog-access.log');
+}
+
 function saveSiteSettings(array $data): bool
 {
     $current = siteSettings();
-    $stringKeys = ['site_title', 'site_claim', 'site_lang', 'site_license_label', 'site_license_url'];
+    $stringKeys = ['site_title', 'site_claim', 'site_lang', 'site_license_label', 'site_license_url', 'apache_access_log'];
     foreach ($stringKeys as $key) {
         if (array_key_exists($key, $data)) {
             $val = trim((string)$data[$key]);
diff --git a/templates/admin.php b/templates/admin.php
index a2b850f..88ce490 100644
--- a/templates/admin.php
+++ b/templates/admin.php
@@ -65,6 +65,10 @@ function adminStatusBadge(array $a, int $now): string
             <a class="nav-link <?= $tab === 'searches' ? 'active' : '' ?>"
                href="/admin/searches">Recherches</a>
         </li>
+        <li class="nav-item">
+            <a class="nav-link <?= $tab === 'books' ? 'active' : '' ?>"
+               href="/admin/books">Livres</a>
+        </li>
     <?php endif; ?>
 </ul>
 
@@ -503,6 +507,14 @@ function adminStatusBadge(array $a, int $now): string
                            value="<?= postsPerPage() ?>"
                            min="1" max="100">
                 </div>
+                <div class="mb-3">
+                    <label for="apache-access-log" class="form-label small fw-semibold">Log d'accès Apache</label>
+                    <input type="text" id="apache-access-log" name="apache_access_log"
+                           class="form-control form-control-sm font-monospace"
+                           value="<?= htmlspecialchars(apacheAccessLog()) ?>"
+                           maxlength="200" placeholder="ex : lan.acegrp.monsite-access.log">
+                    <div class="form-text">Nom du fichier dans <code>/var/log/apache2/</code>, utilisé par l'onglet Recherches.</div>
+                </div>
                 <div class="mb-3">
                     <label for="site-license-label" class="form-label small fw-semibold">Licence (libellé)</label>
                     <input type="text" id="site-license-label" name="site_license_label"
@@ -1114,6 +1126,165 @@ foreach (COLOR_PALETTE_16 as $_i => $_rgb):
 
 <?php endif; ?>
 
+<!-- ─────────────────────────── LIVRES ─────────────────────────── -->
+<?php if ($tab === 'books' && isAdmin()): ?>
+
+    <?php if (($_GET['deleted'] ?? '') === '1'): ?>
+        <div class="alert alert-success py-2 small mb-3">Livre supprimé.</div>
+    <?php endif; ?>
+
+    <div class="row g-4">
+
+        <!-- Liste des livres -->
+        <div class="col-md-4">
+            <div class="d-flex justify-content-between align-items-center mb-3">
+                <h5 class="mb-0">
+                    Livres
+                    <span class="badge bg-secondary ms-1"><?= count($adminData['books']) ?></span>
+                </h5>
+                <a href="/admin/books?new=1" class="btn btn-sm btn-primary">+ Nouveau</a>
+            </div>
+
+            <?php if (empty($adminData['books'])): ?>
+                <p class="text-muted small">Aucun livre pour l'instant.</p>
+            <?php else: ?>
+                <div class="list-group">
+                    <?php foreach ($adminData['books'] as $bk):
+                        $isEdited = ($adminData['edit_book']['slug'] ?? '') === $bk['slug'];
+                        ?>
+                    <a href="/admin/books?edit=<?= rawurlencode($bk['slug']) ?>"
+                       class="list-group-item list-group-item-action<?= $isEdited ? ' active' : '' ?>">
+                        <div class="fw-medium"><?= htmlspecialchars($bk['title']) ?></div>
+                        <div class="small <?= $isEdited ? 'text-white-50' : 'text-muted' ?>">
+                            <?= count($bk['articles'] ?? []) ?> page<?= count($bk['articles'] ?? []) > 1 ? 's' : '' ?>
+                            · <a href="/book/<?= rawurlencode($bk['slug']) ?>" target="_blank"
+                                 class="<?= $isEdited ? 'text-white-50' : 'text-muted' ?>">Voir ↗</a>
+                        </div>
+                    </a>
+                    <?php endforeach; ?>
+                </div>
+            <?php endif; ?>
+        </div>
+
+        <!-- Formulaire édition / création -->
+        <div class="col-md-8">
+            <?php if (($adminData['edit_book'] ?? null) !== null): ?>
+                <?php $eb = $adminData['edit_book']; ?>
+                <h5>Modifier le livre</h5>
+
+                <?php if (($_GET['saved'] ?? '') === '1'): ?>
+                    <div class="alert alert-success py-2 small">Livre sauvegardé.</div>
+                <?php endif; ?>
+
+                <form method="POST" action="/?action=book_save">
+                    <input type="hidden" name="slug" value="<?= htmlspecialchars($eb['slug']) ?>">
+                    <div class="mb-3">
+                        <label class="form-label small fw-medium">Slug (identifiant URL)</label>
+                        <input type="text" class="form-control bg-light" value="<?= htmlspecialchars($eb['slug']) ?>" readonly>
+                        <div class="form-text">Le slug ne peut pas être modifié après création.</div>
+                    </div>
+                    <div class="mb-3">
+                        <label class="form-label small fw-medium">Titre</label>
+                        <input type="text" name="title" class="form-control" required
+                               value="<?= htmlspecialchars($eb['title'] ?? '') ?>">
+                    </div>
+                    <div class="mb-3">
+                        <label class="form-label small fw-medium">Description</label>
+                        <textarea name="description" class="form-control" rows="2"><?= htmlspecialchars($eb['description'] ?? '') ?></textarea>
+                    </div>
+                    <div class="mb-3">
+                        <label class="form-label small fw-medium">Pages (slugs dans l'ordre, un par ligne)</label>
+                        <textarea name="articles" class="form-control font-monospace"
+                                  id="book-articles-ta"
+                                  rows="<?= max(6, count($eb['articles'] ?? []) + 2) ?>"><?= htmlspecialchars(implode("\n", $eb['articles'] ?? [])) ?></textarea>
+                        <div class="form-text">Un slug par ligne. L'ordre définit la navigation précédent/suivant.</div>
+                    </div>
+                    <div class="mb-3">
+                        <label class="form-label small fw-medium">Ajouter une page existante</label>
+                        <select class="form-select" onchange="bookAddArticle(this)">
+                            <option value="">— Choisir un article —</option>
+                            <?php
+                            $alreadyIn = $eb['articles'] ?? [];
+                            foreach ($adminData['all_articles'] as $aa):
+                                if (in_array($aa['slug'] ?? '', $alreadyIn, true)) {
+                                    continue;
+                                }
+                            ?>
+                            <option value="<?= htmlspecialchars($aa['slug'] ?? '') ?>">
+                                <?= htmlspecialchars($aa['title']) ?>
+                                <?= !$aa['published'] ? ' (brouillon)' : '' ?>
+                            </option>
+                            <?php endforeach; ?>
+                        </select>
+                    </div>
+                    <div class="d-flex gap-2">
+                        <button type="submit" class="btn btn-primary">Sauvegarder</button>
+                        <a href="/book/<?= rawurlencode($eb['slug']) ?>" target="_blank"
+                           class="btn btn-outline-secondary">Voir le livre ↗</a>
+                    </div>
+                </form>
+
+                <hr class="my-4">
+
+                <form method="POST" action="/?action=book_delete"
+                      data-confirm="Supprimer le livre « <?= htmlspecialchars($eb['title']) ?> » ? Les pages resteront intactes.">
+                    <input type="hidden" name="slug" value="<?= htmlspecialchars($eb['slug']) ?>">
+                    <button type="submit" class="btn btn-outline-danger btn-sm">🗑 Supprimer ce livre</button>
+                </form>
+
+                <script>
+                function bookAddArticle(sel) {
+                    var slug = sel.value;
+                    if (!slug) return;
+                    var ta = document.getElementById('book-articles-ta');
+                    var lines = ta.value.split('\n').map(function(s) { return s.trim(); }).filter(Boolean);
+                    if (lines.indexOf(slug) === -1) {
+                        lines.push(slug);
+                        ta.value = lines.join('\n');
+                    }
+                    sel.value = '';
+                }
+                </script>
+
+            <?php elseif (isset($_GET['new'])): ?>
+                <h5>Nouveau livre</h5>
+                <form method="POST" action="/?action=book_save">
+                    <div class="mb-3">
+                        <label class="form-label small fw-medium">Slug (identifiant URL)</label>
+                        <input type="text" name="slug" class="form-control" required
+                               placeholder="mon-livre" pattern="[a-z0-9][a-z0-9-]*">
+                        <div class="form-text">Minuscules, chiffres, tirets. Exemple : <code>esp8266</code></div>
+                    </div>
+                    <div class="mb-3">
+                        <label class="form-label small fw-medium">Titre</label>
+                        <input type="text" name="title" class="form-control" required placeholder="Titre du livre">
+                    </div>
+                    <div class="mb-3">
+                        <label class="form-label small fw-medium">Description (optionnelle)</label>
+                        <textarea name="description" class="form-control" rows="2" placeholder="Courte description…"></textarea>
+                    </div>
+                    <input type="hidden" name="articles" value="">
+                    <div class="d-flex gap-2">
+                        <button type="submit" class="btn btn-primary">Créer le livre</button>
+                        <a href="/admin/books" class="btn btn-outline-secondary">Annuler</a>
+                    </div>
+                </form>
+
+            <?php else: ?>
+                <p class="text-muted mt-2">
+                    <?php if (!empty($adminData['books'])): ?>
+                        Sélectionnez un livre à gauche pour le modifier, ou créez-en un nouveau.
+                    <?php else: ?>
+                        Cliquez sur <strong>+ Nouveau</strong> pour créer votre premier livre.
+                    <?php endif; ?>
+                </p>
+            <?php endif; ?>
+        </div>
+
+    </div>
+
+<?php endif; ?>
+
 <?php
 $content = ob_get_clean();
 $title   = 'Administration — ' . siteTitle();