Jessen

Dr Christian's Guide to Growing Up

By Jessen, Dr Christian, Semple, Dave

Supersize Vs Superskinny: Take Control of Your Weight

By Jessen, Christian

Dr Christian's Guide to Dealing with the Tricky Stuff

By Christian Jessen, Jessen, Dr Christian, Semple, Dave

Dr Christian's Guide to You

By Jessen, Dr Christian, Semple, Dave