Since the book isn't official, content varies by creator. Here are the most common places fans share their Spanish translations and designs:
Puedes encontrar versiones en PDF compartidas por fans en plataformas como: Gravity Falls Diario 1 Pdf Espanol _best_ gravity falls diario 1 pdf espanol
Espero que esta información te sea útil. ¡Disfruta explorando el mundo de Gravity Falls! Since the book isn't official, content varies by creator