Noah's Ark Spier, Peter Popularity → Current 35 Peak 80 Niche 90 Retells in pictures how a pair of every manner of creature climbed on board Noah's ark and thereby survived the Flood. Doubleday 1989 48 pages
Gobble, Growl, Grunt Spier, Peter Popularity → Current 20 Peak 50 Niche 68 Illustrations of over six hundred animals accompanied by the sounds they make. Doubleday 1971-09 44 pages