Katherine Applegate
American fiction writer (born 1956)
Katherine Alice Applegate, known professionally as K. A. Applegate, is an American young adult and children's fiction writer, best known as the author of the Animorphs, Remnants, and Everworld book series. She won the 2013 Newbery Medal for her 2012 children's novel The One and Only Ivan. Applegate's most popular books are science fiction, fantasy, and adventure novels. She won the Best New Children's Book Series Award in 1997 in Publishers Weekly. Her book Home of the Brave has won several awards. She also wrote a chapter book series in 2008–09 called Roscoe Riley Rules.
via WikipediaBooks (14)
In the Time of Dinosaurs
Book 2

Elfangor's Secret
Book 3
The Predator
Book 5
The Reaction
Book 12

The Pretender
Book 23
The Familiar
Book 41

Breakdown
Don't Swap Your Sweater for a Dog
Never swim in applesauce

Never Swipe a Bully's Bear

The Hork-Bajir Chronicles
The Invasion

Them
Visser