Prayer is Man's Greatest Power Quiz

Answer: Feel the Fear and Do It Anyway

Since its publication in 1987, "Feel the Fear and Do It Anyway" became one of the biggest selling self-help books of all time, being translated into over 36 languages and selling in over 100 countries. It introduced people to strategies and tools to enable them to overcome their fears and move their lives forward.

Answer: The Happiness Project

Gretchen Rubin had the idea to write this book one afternoon while sitting on a bus. She realised that she was not focusing enough on the things that really mattered in her life, and decided to dedicate a year to her happiness project. The result of this epiphany was a bestselling book which has sold over 1.5 million copies and been translated into more than 30 languages.

It has inspired people to make changes in their lives and make happiness a priority.

Answer: Spencer Johnson

Over 2.5 million copies of this book have been sold since its publication in 1998. It is a simple parable dealing with the four characters in the book searching for their cheese in the maze they live in. Unfortunately the cheese keeps moving. It is a metaphor for what people are actually striving for in life, and how to adapt to suit a variety of situations.

Answer: Jack Canfield and Mark Victor Hansen

The original book was a collection of stories that Jack Canfield and Mark Victor Hansen had collected and compiled from true stories they had heard from their audiences during their motivational speeches. Originally rejected by major publishers, since its publication in 1993 the series has expanded to over 250 titles and sold over 500 million copies world wide.

Answer: Women Who Love Too Much

Robin Norwood, a therapist from California, wrote this examination of why women become involved in destructive relationships and what they can do about this "fatal attraction". This book reveals how addictive these relationships can be, and offers an antidote to recover and rebuild lives.

Answer: Eckhart Tolle

The premise of this book is that only the present is important, and that people wake up in order to see things as they really are. It has inspired many people to question and re-evaluate their lives. Many celebrities have endorsed it, with both Annie Lennox and Gillian Anderson choosing it on the BBC Radio 4 programme "Desert Island Discs" as their chosen book.

Answer: John Gray

Since its publication in 1992, "Men Are From Mars, Women Are From Venus" has sold over 15 million copies. It explores relationship problems between men and women and offers practical solutions to solving these problems. It promotes a better understanding of the opposite sex and gives an insight to both sides of the gender divide.

Answer: Getting Things Done

Productivity consultant David Allen's seminal work "Getting Things Done" was first published in 2001 and quickly became a best seller. In 2015 the book was re-edited and re-released to encompass the technological changes that had taken place since its first publication.

Answer: Norman Vincent Peale

Norman Vincent Peale first published his self-help book "The Power of Positive Thinking" in 1952. The premise of the book was that, if a person could eliminate all negative thoughts and influences from your life, it would allow for the achievement of happiness and success.

When it was first released it was a resounding success; however, it later came under severe criticism from various parties. He was criticised by members of the mental health community and many found the religious content very off-putting.

Answer: Success Through a Positive Mental Attitude

William Clement Stone was a self-made American businessman, author and philanthropist. "Whatever the mind can conceive and believe, the mind can achieve (with PMA)" was a motto which Napoleon Hill adopted as part of his philosophy and which Stone took on board. Stone died on 2nd September 2002, aged 100.