Animals by the Numbers: A Book of Infographics by Steve Jenkins (Houghton Mifflin Harcourt, 2016)
If you have kids who just have to know how things work, here you go. Castles, jet planes, toilets—all fascinating! I love Macaulay's books because they are illustrated, which is a little different. This new series is for a younger age level than Macaulay's previous titles, which I appreciate.