Books are available in paperback editions and as reinforced library bindings — either one is a perfect grown up format for preschoolers who have just graduated from board books. Bright green and blue branding clearly identifies the entire Rookie Preschool line; each level of Rookie books will each carry its own distinctive color pattern. Each Rookie Learn About book focuses on a high-interest preschool topic. Each Rookie Learn About book also includes 1 of 5 essential curriculum themes as a secondary learning topic: self; home/family; neighborhood; wider world; readiness concepts. At the end of each book is a parent note with suggested activites linked to the story and its theme.