David Martin has written many books for children, including Let's Have a Tree Party!, illustrated by John Manders; All for Pie, Pie for All and Little Bunny and the Magic Christmas Tree, both illustrated by Valeri Gorbachev; and We've All Got Bellybuttons!, illustrated by Randy Cecil. David Martin lives in Vermont.
David Walker has illustrated several children's books, including Flip, Flap, Fly! by Phyllis Root and Bears on Chairs and Bears in Beds, both by Shirley Parenteau. He lives in Chapel Hill, North Carolina.