30 How

How to Heal a Broken Heart in 30 Days

Howard Bronson, Mike Riley

30 Days to a Happy Employee : How a Simple Program of Acknowledgment Can Build Trust and Loyalty at Work

Dottie Gandy

The 30-Day Sobriety Solution: How to Cut Back or Quit Drinking in the Privacy of Your Own Home

Jack Canfield, Dave Andrews

D30 - Exercises for Designers : Thirty Days of Creative Design Exercises & Career-Enhancing Ideas

Jim Krause

How to Master 30-Day Challenges : Making Habits Stick

Steve Pavlina

World 3.0 : Global Prosperity and How to Achieve it

Pankaj Ghemewat

How to Become The Master Of Your Own Fate - 30 Book Collection

Niccolò Machiavelli, James Allen, William Walker Atkinson, Orison Swett Marden, Benjamin Franklin, Thorstein Veblen, Kahlil Gibran, P. T. Barnum, Marcus Aurelius, Wallace D. Wattles, Lao Tzu, Russell Conwell, Henry Harrison Brown, Émile Coué

Dark Winter : How the Sun Is Causing a 30-Year Cold Spell

John L. Casey

How To Get Your Point Across In 30 Seconds Or Less

Milo O. Frank

Memory Improvement : How to Improve Your Memory in Just 30 Days

Ron White

How to Completely Change Your Life in 30 Seconds - Part IV

Robert Worstell

30 Maximum Conversion Rate Tips