Wikipedia
Alphapets is a series of children's books by Ruth Lerner Perle, Deborah Colvin Borgo, Judy Blankenship and Richard Max Kolding. They are similar to the Sweet Pickles books in that each letter of the alphabet is represented in a separate book with an animal representing each letter. Each story was filled with words and objects that begin with the letter of the alphabet featured in that book. A special word page at the end of each book provided extra practice in identifying letters and words. The series was initially published in the early 1990s.
Each story followed a similar formula in that typically each animal has a distinct personality trait. This trait was used to build the plot and to impart a moral lesson to the reader. For example, in Justin's Just Joking, Justin is always playing jokes on his friends, making them feel sad. At the end of the book, Justin's friends play a joke on him to make him understand how much his jokes hurt.
These books are appropriate for beginning readers of all ages; however, depending on the child's reading skill, the series are generally recommended for children from Preschool through to 3rd grade.