My son was attracted by the Human Body excerpt pages in the Quantum Pad sampler book which had charismatic descriptions that really helped you learn the organ functions.So we got this book, and were surprised to find that when we turned to the same pages, it did not contain the descriptions, just the body part names. How dissappointing! The sampler book pages (same pictures, added audio) are so much better! I thought they were supposed to be direct excerpts, but they apparently embellished the sampler pages to attract sales from the store demos.I think the money would be better spent on a well-written and illustrated regular anatomy book for this age group. The real shame is that this cartridge could have been so much more, if it truly contained the type of content that the sampler does.