Comprehensive CBT for Health Anxiety Workbook produced the the Health Dept of Western Australia.
Consists of 9 Modules.
Get it here – Free Cognitive Behavioral Therapy for Health Anxiety Self Help
My therapy clients with panic disorder often use their Cognitive Behavioral Therapy for Panic Disorder Workbook in conjunction with therapy.
Their full list of free CBT workbooks is here. They’re just pdfs, so easy to read on your computer or print.