The Seven Mysteries of Life I read last November over the span of a month, and this book is probably the one that has most-defined who I am today, even though it's been just a year. The author, Guy Murchie, spent 15 years writing it. From it I learned the most anybody is from me is 50th-cousin. I also learned that there are insects so small they don't feel gravity, and for them flying through the air feels like swimming. Seriously, get this book, it is earth-shattering.
I'm also going to recommend another book but I hope not to undermine my first recommendation. It was written by Joseph Campbell and it's called The Hero with a Thousand Faces. I read it in January. In it Campbell writes of many mythological stories and then ties their common themes back to the journey the 'hero' must take. And from this journey the hero must take I got insights that were profound. I'm not kidding when I say I hold a deep reverence for this book.
I found the book "The definitive book of body language: How to read others's thoughts by their gestures" by Allan and Barbara Pease to be a great read.
The greatest show on Earth - Richard Dawkins was an excellent read.
Surely you're joking Mr Feynman by Richard p.Feynman was terrific read by a very small bit can considerred offensive or at the least dated in its outlook but if you can get past that its great!
I recently finished a book on ID called "Masters of doom" by David Kushner which I rather enjoyed as well.
I also love reading about crackers from the (mostly) 80's and I can recommend.
Cuckoo Egg by Cliff Stoll
Masters of deception
We are anonymous - Inside the hacker world of lulzsec, anonymous and the global cyber insurgency by Parmy Olson
I loved "Underground Hacking Madness and the obsession on the electronic frontier" once I got past the first 2 or 3 chapters (also it was researched by Julian Assange before wikileak and has a chapter about his hacking) An Ebook copy can be found on the authors website http://www.underground-book.net/download.php3
I re-read Julius Caesar's Commentaries at least five times a year. I find them some of the most absolutely fascinating texts that exist. Discovered them when I was maybe 15 and they sparked my love of ancient history.
Marcus Aurelius' "Meditations" is interesting in some similar ways.
Whether its getting up early in the morning, going to the gym, learning new skills - it all comes down how good a person is in forming new habits and sticking to them.
This book helps get into the mechanics of how habits are formed, and the elements that will help make them stick.
The best part is that the book is loaded with specific case studies for both personal use as well as case studies relevant for product-based organization.
I loved it! Not that I'm going to the gym any more regularly though :)
Last month I read "Zen and Art of Motorcycle Maintenance" by Robert M. Pirsig and just completed reading "Predictably Irrational: The Hidden Forces That Shape Our Decisions" by Dan Ariely. I would recommend both of these books. I have just started with 'Thinking, Fast and Slow' by Daniel Kahneman.
I've slowly been working my way through Kitab Al-Hikam by Al Iskandari. It's pretty interesting, reminds me of eastern philosophies, zen koans and the inter connected nature of religions or philosophies which don't seem to share any apparant connection.