"Whose Tail Is That?" is part of a beautiful series of toddler books by Joukje Akveld. Each book asks the question: who or what belongs here? The illustrations in this book are by Martijn van der Linden. On the left is a tail, on the right four animals: a giraffe, a penguin, a crocodile, and an elephant. Whose tail is that? Once the choice is made, a beautiful drawing with the answer appears. There are some fun jokes in there: how about a crocodile with a flowered backpack, or a ring-tailed lemur with a selfie stick? This toddler series is illustrated by the best illustrators in the Netherlands. Each book is by a different illustrator, who always manages to add a surprising twist. The illustrations in this book are by award-winning illustrator Martijn van der Linden, who conjures up the most beautiful animals.