A few Personal Development products I can recommend:

Pilates: Relief For Back And Joint Pain.
Pilates Exercise Photos And Detailed Descriptions For Back And Joint Pain Relief!
Pilates: Relief For Back And Joint Pain.

The Blue Sky Guide To Job Search
A Step-by-step Guide To Finding A Great Job, Written By A Leading Careers Expert. Excellent Conversion Rates And Strong Add-on Potential Due To Additional Guides In The Same Series.
The Blue Sky Guide To Job Search