Silverstein's drawings are deceptively simple -- black-and-white line sketches that leave plenty of white space on the page -- yet each illustration demonstrates a subtlety of emotion and change that is as captivating as it is basic. The gradual loss of the tree's various parts makes for a strong visual message. By the time the tree reaches the stump stage, the stark drawing is a perfect companion for the accompanying words: "And the tree was happy...but not really." The Giving Tree can be read over and over again, for a child's understanding of its message will likely change as the child grows. Although this isn't a colorful, fun-filled, happy-themed book, its message is a profound one that will likely inform and impress children for generations to come.