Aleksandra Mizielinska and Daniel Mizielinski graduated from the Academy of Fine Arts in Warsaw in 2007. In 2010 they were nominated for the Bologna Ragazzi Award and have since been nominated for the IBBY Honour List (2010).

This unusual activity book with its landscape format will really encourage children to take a closer look at what lies below the sea, from marine animals to divers who explore the undersea world. Much more than just an activity book, it is packed with fascinating facts and activities ranging from mazes (I love the octopus maze!) to complete the scene and colouring in. There's plenty of scope for the imagination, such as designing an underwater hairstyle, and the range of activities and information is impressively varied. The illustrations are of a high standard and the pages are perforated so they can be pulled out to display.