Hey thanks for the link.Holybooks.com is a site where you can download free PDF's on the esoteric, Buddhism, Non Duality, Zen and much more.
I am currently reading The Quiet Mind by John E Coleman. It is a most enjoyable read.
The Quiet Mind by John E. Coleman, a former CIA-officer, is a classic story of a search – the personal experience and the discoveries which led one man to a state of mind which has increased the joy of living and the ability to cope effectively with many of life´s problems.
Its a great site, so please go explore