"Living with someone who's living with Bipolar Disorder" by Chelsea Lowe and Bruce M. Cohen, MD, PhD
My father actually found this book a couple of years ago, and my psych had no idea about it and he specializes in bipolar among other diseases.
Some people may think that you are 'faking' because of coping skills, but this book has helped my family and friends understand what I am going through.
I'd recommend it.
John Doe