International OCD Foundation (IOCD)
Book: Buried in Treasures: Help for Compulsive Acquiring, Saving, and Hoarding, David F. Tolin, Randy O. Frost, & Gail Steketee, second edition (Oxford University Press, 2014). Introduction to the phenomenon of hoarding for people who hoard and their families. My favorite self-help book on this topic.
Book: Overcoming Compulsive Hoarding, by Fugen Neziroglu, Jerome Bubrick and Jose Yaryura-Tobias (New Harbinger Publications, 2004). A book for people who hoard and for their families. This book provides background on the phenomenon of hoarding and gives direction on how to address it, both as self-help and as family intervention. Also helpful in developing a general understanding of hoarding or a plan for assisting someone who hoards.
Book: Digging out: Helping your Loved One Manage Clutter, Hoarding, and Compulsive Acquiring by Michael A. Tompkins, & Tamara L. Hartl (New Harbinger Publications, 2009). Introduction to the concept of harm reduction - the improvement and not necessarily the elimination of a problem behavior—as it applies to hoarding behavior. Helpful when working with the client’s family and with clients who are unable or unwilling to fully dismantle their hoard.