i think it’s funny that a certain book is going on amazon from a range of $70-$131.24 (from $15.01-$80.62 used) and the author has it available free to download in .pdf form on their website.
of course, it really is worth every dollar, and then ten times that. and then some. many times over.
but free is better.
if you’re interested: http://www.daveroberson.org/books.aspx
i’d recommend an open mind and setting aside of predispositions. game changing.