Charlotte Guillain worked as a bookseller, an English teacher and an editor before becoming an author. She has written more than 100 books, both fiction and non-fiction. She always wanted to be a writer and her top tip is to read as much as you can. Adam Guillain lives near Oxford with his wife, Charlotte, their two children. Adam and his wife have written several picture books together as well as young fiction. They like to be as silly as possible! Kelly Gaffney is a former early childhood teacher who has written for Engage Literacy since 2010. When not writing for Engage Literacy, Kelly works as an intervention specialist for primary and secondary school-aged children. She lives in Victoria, Australia. Kassandra (Kassi) Radomski is a freelance writer and editor. She writes articles and books for children on a variety of topics, but she especially enjoys digging into historical events and bringing them to life. Her books, Mr. Madison's War: Causes and Effects of the War of 1812 and The Apollo 13 Mission: Core Events of a Crisis in Space were published in 2013. Kassi lives in Madison, Wisconsin with her family. Jessica Gunderson grew up in the small town of Washburn, North Dakota. She has a bachelor's degree from the University of North Dakota and an MFA in Creative Writing from Minnesota State University, Mankato. She has written more than fifty books for young readers. Her book Ropes of Revolution won the 2008 Moonbeam Award for best graphic novel. She currently lives in Madison, Wisconsin, with her husband and cat. Ruth Bjorklund is a freelance writer of nonfiction for children and teens. She has written numerous books on a variety of topics, ranging from health issues to animals to geography.