Lot of 4 National Geographic Books for Young Explorers Wild Animals Zoo Animals Zoo Babies, Animals in Danger - 1978, Animals that Travel - 1982, Secrets of Animal Survival - 1983 Each book measures approximately 11"H x 9"W There are a couple of pages that have small tears. The Animals in Danger book has a crease in the front and back cover. These are used books, there may be imperfections that I did not see.