Exactly. Even then, the situation regarding text books is insane. Something like these could easily be fixed in many ways. Just in my opinion, text books should

Exactly. Even then, the situation regarding text books is insane. Something like these could easily be fixed in many ways. Just in my opinion, text books should be free, based on publicly funded research and MIT or CC licensed and free and open to anyone who wishes to learn. The fact that we gate keep knowledge (that is often research funded by tax payers) behind wealth is a giant she embarrassing stain on this country and this era.