There are a lot of free books available on Kindle at the moment.
The good news is that you can read them even if you havent got a Kindle, via Amazon's Kindle for PC, Kindle for Android or Kindle for IPad app. Some of the books are old classics, some are new. I haven't read them all yet, but here is a sample of those that caught my eye.
PSYCHOLOGY, COACHING & SELF-HELP
Take Control Of Your Life: Self Help For Depression, Anxiety Disorders, Confidence, Success & More
Cheerfulness as a Life Power
Maximize your time
Whole new you: 365 Brilliant Ideas for Getting Off Your Butt and Living Life to the Full
Ultimate Career Coach: Everything You Need to Know to Succeed At Work
Karren Brady's 10 Rules for Success
Stress proof your life
Upgrade Your Brain: 52 Brilliant Ideas for Everyday Genius
The Essays of Arthur Schopenhauer: the Wisdom of Life
Plato and Platonism
The Essence of Buddhism
The Gospel of Buddha, Compiled from Ancient Records
The Life or Legend of Gaudama The Buddha of the Burmese (Volume I)
Modern Buddhism: The Path of Compassion and Wisdom - Volume 2 Tantra
At the time of writing all of the above can be "bought" for the grand sum of £0.00
Happy reading and let me know how you get on!