"...takes you below the waves to discover a rich world of concept and character development art, swimming with fascinating facts and insider details from the movie's creative team."
-- Animation Magazine
"This art book is a lot of fun to peruse--you get to see a lot of the character designs in particular, from sketches to clay models to digital models; I particularly enjoyed the drawings of various sea monsters in their sea and human forms. There's also a lot about the design of the fictional Portorosso, which was inspired by the seaside towns where director Enrico Casarosa grew up (and had adventures with his own childhood friend Alberto)."
- Geek Dad
-- The Laughing Place