diff --git a/pages/author/[pubkey].tsx b/pages/author/[pubkey].tsx
index 16d53bb..1c40b99 100644
--- a/pages/author/[pubkey].tsx
+++ b/pages/author/[pubkey].tsx
@@ -22,6 +22,9 @@ function AuthorPageHeader({ presentation }: { presentation: AuthorPresentationAr
     return null
   }
 
+  // Extract author name from title (format: "Présentation de <name>")
+  const authorName = presentation.title.replace(/^Présentation de /, '').trim() || presentation.title
+
   return (
     <div className="space-y-4 mb-8">
       <div className="flex items-start gap-6">
@@ -35,16 +38,35 @@ function AuthorPageHeader({ presentation }: { presentation: AuthorPresentationAr
             />
           </div>
         )}
-        <div className="flex-1">
-          <h1 className="text-3xl font-bold text-neon-cyan mb-2">
-            {presentation.title || t('author.presentation')}
-          </h1>
-          <p className="text-xs text-cyber-accent/60 italic mb-4">
-            {t('author.profileNote')}
-          </p>
-          <div className="prose prose-invert max-w-none">
-            <p className="text-cyber-accent whitespace-pre-wrap">{presentation.content}</p>
+        <div className="flex-1 space-y-4">
+          <div>
+            <h1 className="text-3xl font-bold text-neon-cyan mb-2">
+              {authorName}
+            </h1>
+            <p className="text-xs text-cyber-accent/60 italic mb-4">
+              {t('author.profileNote')}
+            </p>
           </div>
+          {presentation.description && (
+            <div className="space-y-2">
+              <h2 className="text-lg font-semibold text-neon-cyan">
+                {t('presentation.field.presentation')}
+              </h2>
+              <div className="prose prose-invert max-w-none">
+                <p className="text-cyber-accent whitespace-pre-wrap">{presentation.description}</p>
+              </div>
+            </div>
+          )}
+          {presentation.contentDescription && (
+            <div className="space-y-2">
+              <h2 className="text-lg font-semibold text-neon-cyan">
+                {t('presentation.field.contentDescription')}
+              </h2>
+              <div className="prose prose-invert max-w-none">
+                <p className="text-cyber-accent whitespace-pre-wrap">{presentation.contentDescription}</p>
+              </div>
+            </div>
+          )}
         </div>
       </div>
     </div>
@@ -256,7 +278,7 @@ export default function AuthorPage(): React.ReactElement {
   if (typeof pubkey === 'string') {
     // Try to parse as new format first (hash_index_version)
     const urlMatch = pubkey.match(/^([a-f0-9]+)_(\d+)_(\d+)$/i)
-    if (urlMatch) {
+    if (urlMatch && urlMatch[1]) {
       // Extract hash ID from the format hash_index_version
       hashIdOrPubkey = urlMatch[1]
     } else {
@@ -274,7 +296,7 @@ export default function AuthorPage(): React.ReactElement {
   const { presentation, series, totalSponsoring, loading, error, reload } = useAuthorData(hashIdOrPubkey || '')
 
   if (!hashIdOrPubkey) {
-    return null
+    return <></>
   }
 
   // Get the actual pubkey from presentation