A book list for second graders on About.com recommends "Grumpy Bird" by Jeremy Tankard, which discusses grumpiness due to hurt emotions. This list also recommends any book in the "Mr. Putty and Tabby" series by Cynthia Rylant about the relationship between an old man and his cat.
"The Pigeon Series" by Mo Willems begins with the book "Don't Let the Pigeon Drive the Bus" which is a funny story that is meant to be read aloud. The books engage the reader and allow him to make decisions as the story progresses. Each book follows Pigeon as he gets into silly situations.
The book "D.W. All Wet" by Marc Brown follows the sister of the famous aardvark character Arthur. The stories that focus on D.W. target a younger age group than the "Arthur" books but introduce those readers to the series' characters.
The books in the "Fluffy the Classroom Guinea Pig" series by Kate McMullan follow the story of a classroom pet who longs to have a bolder name. There are 25 books in the series and each book is an average of 40 pages. These books help students increase their comprehension of complex sentence structures and gain experience reading longer books.