Max&Music My opinion on the rating for this book is that it might barley pass as an all age book. The few things that my keep it from getting all ages is the small amount of swearing. The book does have some slightly disturbing images later in the series.
Shadowjac The series is aimed at the seinen demographic, seinen means for adult men. Despite that the series is marketed by Tokyopop for ages 13+ personally I found the series quite dull but not horribly inappropriate. Overall it's not an all ages series.