I have a lot of old Dr. Seuss books from when I was a kid (I think they were from my grandparents). I have no idea if these are rare or valuable.

Dr. Seuss Day 2015 - Grandparently

What is an Elephant Doing in a Tree? – FanningSparks

The Places You'll Go

Blog — Sarah Webb

You're Only Old Once! : A Book for Obsolete Children by Dr. Seuss (1986, 9780394553955

What Pet Should I Get? Dr. Seuss's Previously Unseen Illustrated Wink at the Paradox of Choice and the Fear of Missing Out, Brain Pickings

When the Emperor Was Divine by Julie Otsuka: 9780385721813

Selling Antique Books, How to Determine Rare Book Values

100+ Best Dr. Seuss Quotes for Every Occasion - Parade

Booklash: Literary Freedom, Online Outrage, and Language of Harm

The Sneetches and Other Stories by Dr. Seuss

The 75 Best Children's Books for Babies, Big Kids & Teenagers

The Scourge of Upside Down Knitting Needles: Or, Why Picture Books with Knitting Are Like Picture Books with Math

The Other Family Doctor: A Veterinarian Explores What Animals Can Teach Us About Love, Life, and Mortality: Fine, Karen: 9780593466919: : Books