Reddit mentions of The Left-Hander's Handbook

Unknown. The Left-Hander's Handbook actually states that the right-handed dominance we have is a fairly new phenomenon. If you look at tools from the stone age, most of them are ambidextrous. My guess is that we've adopted a mostly right handed writing system.

I am so ashamed my highest rated post is a repost.

To make up for it, here is an awesome left handed book that helped me through the hard times. Its contains scientific proof that left is best.

http://www.amazon.com/The-Left-Handers-Handbook-James-Kay/dp/1567312292