Sandra Nickel grew up in Iowa and Kansas. She knew all along that she thought a little differently than others, but did not then know she was autistic. Her unique brain led her to a variety of careers, including nurse's aid, summer playground supervisor, clerk to a judge on the U.S. Court of Appeals, lawyer at a giant New York City law firm, food server, actress, wife, mom, and children's book author. She lives with her family in Switzerland.  

Calvin Nicholls is an award-winning paper sculptor who began his training in the graphic design program of Sheridan College in Oakville, Ontario. His work as appeared at the Woodson Art Museum in Wisconsin, in juried shows through the Society of Animal Artists, and in galleries throughout the United States and Canada. He created fifteen sculptures to illustrate Rafe Martin's The World Before This One, which Kirkus Reviews called "remarkable," but this is his first picture book. He lives with his family in Lindsay, Ontario.