The folks at Listanity have put together a list of the “The 10 Craziest How-To Books You Never Knew Existed.” All are still in print and available.
The list:
How To Shit in the Woods
How To Have Sex in the Woods
How To Be Pope
How To Start your Own Country
How to Be Happy Though Married
How to Rent a Negro
How To Lose Friends and Alienate People
How To Become A Schizophrenic
How To Read a Book
How to Speak with the Dead
There really is no limit to what you can learn though books.
Thanks to Neatorama for the lead