3.
5.
Baby Rube's Opposites (a Rube Goldberg Book)
by George, Jennifer, Vogel, Vin
ISBN: 9781419759499
List Price: $16.99
9.
Peek-A-Poo! Board Book : I Can Potty and So Can You!
by Conlon, Mara, Vogel, Vin
ISBN: 9781441339966
List Price: $5.99
16.