best books

Hi all, I just soft launched the new website www.GreatestRanked.com where everyone can cast votes on the books they feel makes the biggest impact (no signup needed). As fellow entrepreneurs I would love to hear your input! I'm trying to find books that have stood the test of time, and books...

Thanks to this thread and it author. It will only be fair to have a thread for the best book you have read. As for me, here are some How To Stop Worrying and Start Living - Dale Carnegie Guide To Investing; What the Rich Invest In, The The Poor and Middle Class Do Not - Robert Kiyosaki (Opened...