must-read books, non-fiction version

a friend of mine recently asked me to suggest "10 books everyone should read".  This is my non-fiction version (+1 b/c me & following rules are hardly friends):

• When God Was A Woman--Merlin Stone
• The Warmth of Other Suns--Isabel Wilkerson
• Martin & Malcolm in America--James Cone
• A People's History of the United States--Howard Zinn
• Super Freakonomics--Levitt & Dubner 
• Multiple Intelligences--Howard Gardener
• Dead Aid--Dambisa Moyo
• They Came Before Columbus--Ivan Van Sertima 
• The Communist Manifesto--Karl Marx
• The Four Agreements--Don Miguel Ruiz
• The Checkbook & the Cruise Missile --Arundhati Roy 

This is by no means a comprehensive list.  These are not my 10 favorite books.  Just 10 books I think add a necessary perspective to life as we currently know it.

I would love to know what 10 books other people would put on their list...

on my list to read:
lucille clifton
lies my teacher told me
the confederate & neo-confederate reader
Africans in America
The Living Blood
& Re-Reading the 4 Agreements