Commentary: “Needing to Know for Sure is a terrific resource for anyone who wants to understand how futile attempts to eliminate uncertainty in life are at the core of any obsession. The authors’ clear expertise in OCD and anxiety is reflected in their believable examples of people trapped in the need to know. The book offers a great variety of tips and tools for abandoning unproductive reassurance and learning that life really is better with doubt.” —Jon Hershfield, MFT, author of Overcoming Harm OCD, and director of The OCD and Anxiety Center of Greater Baltimore -- Jon Hershfield, MFT