New Dr. Seuss Book was published in 2015. Dr. Seuss wrote and illustrated the book probably between the late 1950’s and early 1960’s. Seuss died in 1991, but he never published it. His widow found the manuscript after his death. What Pet Should I Get? is about two children who go to the pet store but can buy only one pet. They contemplate traditional pets such as dogs or rabbits. Then unusual, Seuss-invented pets become possibilities.