The Big Book of the Blue is the third instalment in Yuval Zommer’s beloved series. Alongside everything the young oceanographer needs to know, Zommer’s charming illustrations bring to life some of the slipperiest, scaliest, strangest, and most monstrous underwater animals. It explores the underwater world thematically, looking at animals in danger, learning how to spot creatures at the beach, and discovering how to do our part to save sea life.