A Doctor of Philosophy is a terminal degree that usually denotes the highest level of academic achievement in a given discipline and is awarded following a course of graduate study and original research. The name of the degree is most often abbreviated PhD and is pronounced as three separate letters. The University of Oxford uses the alternative abbreviation "DPhil".

It Will Never Happen to Me!
1987
ISBN 9780345345943
Candles burning
2007
ISBN 9781440621796
The People's Victory
2017
ISBN 9781495639067
The Seven Principles for Making Marriage Work
2015
ISBN 9781101902912
The China Study
2004
ISBN 9781935251002
The Sociopath Next Door
2005
ISBN 9780767920209
Cosmos
2015
ISBN 9781312955547
Pay Attention, for Goodness' Sake
2003
ISBN 9780345448118
Why Did You Have to Get a Divorce? And When Can I Get a Hamster?
1998
ISBN 9781466824249
Relax with Me : Home Coloring Book 4
2016
ISBN 9781539135951
Relax with Me : Home Coloring Book 2
2016
ISBN 9781539134725
Out Came the Sun
1989
ISBN 9780663461653
Dance of Deception
1993
ISBN 9780060170172
Ove Arup
2006
ISBN 9780300112962
And Baby Makes Three
2007
ISBN 9780307382009
Pesonality and Stress Management
2008
ISBN 9781440459450
Arab Palestinian and Jews
2009
ISBN 9781441495679
Face the Music and Dance
2011
ISBN 9781849912556
The Other Side of the Hill
2012
ISBN 9781105408823
Personality 101
2012
ISBN 9780826107848
The Death of Aaron Howell
2012
ISBN 9781479353491
Research Practice:Steps of Doing Research
2012
ISBN 9781481234283
Fantasy AGE Bestiary
2017
ISBN 9781934547731
The Dangerous Case of Donald Trump: 37 Psychiatrists and Mental Health Experts Assess a President
2017
ISBN 9781250256287