About Travis Jonker Travis Jonker is an elementary school librarian and the creator of 100 Scope Notes, a kidlit blog hosted by School Library Journal. He was a member of the 2014 Caldecott committee. Jonker lives with his wife and two children in Zeeland, Michigan. Books by Travis Jonker Caboose A Picture Book by (author) Travis Jonker illustrated by Ruth Chan Ages 4 to 8 Grades p to 3