The Rapid Reading book series allows readers to slowly acquire the decoding skills needed in the right order to learn to read and become fluent readers. The series contains interesting, colorful stories with the reading skill emphasized on every page. The constant repetition of prevalent decoding skills allows readers to quickly and efficiently practice the sounds, thereby internalizing them and becoming fluent readers.Book 2 of the series emphasizes the short "o" sound and follows Don, a boy with a love for dogs who finds a frog and wants to keep him.