Today, April 30, is Arbor Day! Arbor Day was first celebrated more than one hundred years ago, in 1872, and is celebrated here on the last Friday in April. Arbor Day is a day to celebrate and plant trees, and for celebrating the forests. Celebrate Arbor Day by planting a tree at your house, or by learning about trees and forests. Here are a few books from the library that might help you choose a tree for your yard, and will help you learn more about trees and about Arbor Day.