I found this really cool book about astral projection that you should check out.
When you can perform astral projection, you safely and temporarily break the bonds holding mind and body together so that you can travel through space and time . . . obtain higher knowledge . . . communicate with those on the astral planes . . . even meet an astral lover! Here is your complete guide to aid you in successful and conscious astral travel. Step-by-step, easy exercises allow you to safely leave your body.
The following is contained within the book:
The Art of Living: astral body, astral projection, out-of-body experience
You and Astral Projection: astral projection, out-of-body experience, astral body
Astral Projection Is Natural: crown center, vegetarian, rhythmic breath







