What you thought you knew about mortgages was wrong! Don does an amazing job explaining how banks are making bank on our desire to own a home. Know what you're paying for... it's not a 4% loan... it's really a 70% loan with the way it amortizes monthly.
To get out of debt, you have to understand it and this book details exactly how to know how to best pay off your debt.
The snowball method never made sense to me as an engineer, I knew it didn't cost me any extra to have a debt with no interest... so why would I pay it off first. This is the only method that I trust.