This Step 3 Step into Reading leveled reader with stickers is based on the popular Transformers BotBots collectible toy line! When Energon hits the mall, it's soon clear that everything inside is more than meets the eye! Candy treats, sports equipment, electronics, food, school supplies, and more come to life as little Transformers robots called the BotBots! Girls and boys ages 5 to 7 will love this Step 3 Step into Reading leveled reader, which is based on the popular Transformers BotBots collectible toy line and includes more than 30 stickers! Step 3 readers feature engaging characters in easy-to-follow plots about popular topics. For children who are ready to read on their own.