Close Your Legs

If You Want Closure in Your Relationship. Start with Your Legs - Big Boom

It sounds like more of an insult than a book title but this self help manual is for real and has won this years(2012) 'Diagram Book Award' for the weirdest book name.
Written by the cherishably named Big Boom (see pic below) it reaped 33% of the 8500 votes cast.

Big Badda Boom, self help guru and
self proclaimed 'Ladies Man'
and all round good egg