These books are AWESOME!! I'll admit, if you have absolutely 0 knowledge of the topics, i can see how it could be a little confusing or hard to further explain to a little (for example, one line says something about "this is the second law of thermodynamics" and uses words like "entropy"), and the actual words may be a little advanced, but im a firm believer of using regular language with babies *most of the time* so I honestly think it's wonderful! And it's a great refresher for me too lol my daughter is 15 months, I'm going to introduce these to her probably around 18 months. Will she grasp the concepts? Probably not, at least not at first. But they're really cool books an an awesome introduction to physics at a super early age! I think the statistical physics and nuclear physics are the easiest for Littles, the astrophysics is probably the more advanced of these 4. Anyway. I can't wait to get the rest of the books in this series, and I love that I was able to get a few to see how I like them before ordering all of them!

I love these books! It’s a little too advanced for my two year-old granddaughter. But I will hang onto these and introduce them to her again they are well-made and fun.

Cute reads for a baby genius in the making. We love this series and will be making more purchases in the future!

I've bought eight in this series; thats how much I love them! Great set, great illustrations. Kids really like them... and so do adults! :D

These books are so cute and my husband loves them for the baby.

I bought these more for myself. I love science and figured if I was going to have to read the same books over and over it might as well be something interesting. First of all, where were these when I was in high school and college. WOW the simplicity of these vastly complex concepts is amazing. These should be standard issue. Second… my child LOVES these. Specifically he is obsessed with “Statistical Physics for Babies” and we have exceeded 100 readings of that book. God love this author! He is amazing and my child is 3 years old and has memorized all of these books.

I bought these for my brother when he had his first child, as he was studying similar subjects in college at the time. His child is now old enough to start learning to read, and he calls just to tell me about all of the things she has picked up from these books. The books art is fairly sterile, and the voice a bit dry, but the content is accurate and easy to follow. A worthwhile way to spend time for people with children. Hopefully you are an engaging reader prepared to answer questions.

Excellent product for babies!