Jeff Mercer

Dusty Baker's Hitting Handbook

Dusty Baker's Hitting Handbook; Vol 1, BASICS OF HITTING

Dusty Baker's Hitting Handbook; Vol 2, DRILLS & DEVELOPMENT

Dusty Baker's Hitting Handbook; Vol 3, ADVANCED HITTING

Testosterone: Boost Your Muscles and Manhood Manually

Neurotransmitters: Hormones and Neurons That Train Our Brain and Determine Our Happiness