Seven-year-old Stink Moody discovers that he can get free samples by writing letters to candy companies and plans a surprise for his best friend's birthday.

After Judy obtains a mood ring, she tries to convince herself and her third-grade classmates that she can predict the future.

"The shortest kid in the second grade, James Moody, also known as Stink, learns all about the shortest president of the United States, James Madison, when they celebrate Presidents' Day at school."--

After learning about the American Revolution on a family trip to Boston, Massachusetts, Judy Moody makes her own Declaration of Independence and tries to prove that she is responsible enough to have more freedoms, such as a higher allowance and her own bathroom.

Judy's big plans for the summer seem ruined when two of her best friends go away, and then her parents leave her and Stink with Aunt Opal, but a new "thrill-a-delic" plan has her racing toward fun.

Stink Moody, friends Webster and Sophie, and Mrs. Birdwistle visit tourist attractions in Virginia as they try to give away 101 guinea pigs rescued from a laboratory, although Stink is very reluctant to give away his favorite, Astro.

Stink and his friends try to earn money to buy the latest book in the Nightmare on Zombie Street series and go to the book release party.

After second-grader Stink gets an unsatisfactory grade in physical education, his parents tell him he must play a sport and so he masters thumb wrestling, as seen on a sports channel.

When Stink's parents win an aquarium sleepover, he and his two friends enjoy a scavenger hunt before trying to fall asleep while worrying about the frankensquid on the loose.

Judy Moody's new friendship with Amy Namey causes problems with her old friends and the school project they are working on together.