Terribly nerdy confession: I started collecting Dr. Seuss books years before I had my first child. I just love them that much. They’re pretty much how both my kids learned to read. And even now that my youngest is nearly a teenager, we still have most of the books. Just because.

If your Dr. Seuss library needs beefing up, take a look at this special at Amazon: Buy two qualifying Seuss titles and get a third for free. Some of them aren’t actually Seuss books, though, just in case you’re a purist. There’s P.D. Eastman and other I Can Read titles in there.

Want the best bang for your buck? Pick the ones that are collections, and you’ll end up with over a dozen books, instead of just three. (Here, let me help: My Big Book of Beginner Books About Me for $10.87, My Big Blue Book of Beginner Books for $10.87, and The Little Blue Box of Bright and Early Board Books by Dr. Seuss for $13.57.)

Or you could just go for the classics. As far as I’m concerned, everyone need more green eggs and ham.