Dr Peter Marshall is a distinguished psychologist and polymath, whose works have significantly contributed to the arts, sciences and manufactures.  He has penned twenty-eight books on various subjects, including psychology, psychotherapy, accounting, finance, business and fiction in addition to hundreds of articles, essays and papers. His first novel, a surrealist work, was shortlisted for the Welsh Arts Council’s Literary Prize, and chosen as Book of the Week on HTV Primetime, whereon Peter was studio guest. 


His publications include both academic and popular psychology and the publication of Unlocking  Your Potential,  originally called How To Master Your Mind, Life and Destiny  was the book that kicked off the self-help genre, which has since grown to be the largest non-fiction publishing sector of all. 


A qualified hypnotist and psychotherapist, Dr Marshall is a former Principal of the London School of Hypnotherapy and Psychotherapy. He toured the country in the late 1990s,  performing mass hypnotism on stage and his “Handbook of Hypnotherapy is  used and recommended by many hypnotherapy training schools. He is also the originator of The Trance Theory of Mental Illness (See Wikipedia Curative Hypnotherapy page).


He is a former Regional Chairman of Mensa and the first Research Director of The Mensa Foundation for Gifted Children. His doctoral thesis was in the subject of underachievement among Gifted Children (See Wikipedia Gifted Education page) and he was chosen to give the society’s Cambridge Lecture on the subject at Queens College in 2018. Currently, he is the President of IAFHA, The International Association for High Ability.. 

Dr Marshall was instrumental in The Portuguese Educational Reform Program, delivering a lecture on Gender Disadvantage in Education at the First National Conference on Educational Psychology, as Visiting Professor to The University of Coimbra.

He is an expert in human memory, a former invigilator for Guinness Records in memory performance and was initially selected to host the Memory Pod at The Millennium Dome. Working in Memory Research at London University for many years, as part of his work, he produced the 5 x 5 System  for a Memory Improvement, the only memory improvement system on the market that is scientifically validated.(See Wikipedia Memory Improvement Page). He also hosted  The Great  Memory Show for the two years that it ran (See Wikipedia Memory Competitions page and Methods Used to Study Memory page). An accomplished portrait artist, he also used this opportunity to sketch the portraits of the memory champions for reproduction in his book Improving Your Memory  with The Unique Five x Five System. Since then, he has penned many popular books in the genre, in subjects ranging from training for success, overcoming destructive tendencies,  study skills and mastering emotions. 


Dr Marshall is also qualified in accounting, finance and business management and his books on the subject have been in print for more than twenty-five years. Indeed, the flagship one is now in its  twenty-fifth year and 10th edition. His books on bookkeeping and accounts are the only ones on the market that bear the crest, accreditation and recommendation of all of the principal institutes on the subject.

As a student, he successfully completed two different degrees (a BA and a B.Sc.) at two different universities, plus a diploma in accounting at a third institution, achieving, in the latter, the first place in the UK,  all at the same time, and was acclaimed Britain’s Brainiest Student in the national papers.


In addition to all this, Dr Marshall is an accomplished actor and has been Chairman of Equity (the actors’ union) in South East Wales for the past seven years.

He is also a published historian and has chronicled two volumes of the history of the Balkans from 1853. In addition, he has penned hundreds of papers on subjects as diverse as philosophy, quantum physics, education, politics and popular culture. 


In his youth, he rode racehorses. His more recent hobbies are flying aeroplanes and helicopters and he holds a Royal Yacht Association Certificate of Competency.

List of publications by Dr Peter Marshall

1.       Marshall, Peter (1995). How To Study and Learn. Plymouth: How To Books. ISBN 9781857030624.

2.       Marshall, Peter (1997). How To Study and Learn. Oxford: How To Books. ISBN 9781857034356.

3.       Marshall, Dr Peter (2012). How To Study and Learn. Manchester: Oakley Books Ltd. ISBN 9780956978448.

4.       Marshall, Peter (1997). Maximising Your Memory. Oxford: How To Books. ISBN 9781857032345.

5.       Marshall, Peter (2001). Maximising Your Memory. Mombassa, India: Jaico. ISBN 9788172249397.

6.       Marshall, Dr Peter (2012). Maximising Your Memory. Manchester: Oakley Books Ltd. ISBN 9780956978417.

7.       Marshall, Peter (1997). Research Methods. Oxford: How To Books. ISBN 9781857034103.

8.       Marshall, Dr Peter (2012). Research Methods. Manchester: Oakley Books Ltd. ISBN 9780956978431.

9.       Marshall, Peter (1998). Unlocking Your Potential. Oxford: How To Books. ISBN 9781857032529.

10.   Marshall, Peter (1999). Unlocking Your Potential. Changsha, China: Hunan Literature and Art Publishing House. ISBN 9787540421410.

11.   Marshall, Peter (2001). Unlocking Your Potential. Mombassa, India: Jaico. ISBN 9788172248901.

12.   Marshall, Dr Peter (2011). Unlocking Your Potential. Manchester: Oakley Books Ltd. ISBN 9780956978400.

13.   Marshall, Dr Peter (2002). Memory. Taunton: Studymates. ISBN 9781840251470.

14.   Marshall, Dr Peter (2002). Studying Psychology. Taunton: Studymates. ISBN 9781840251029.

15.   Marshall, Dr Peter (2004). Secretele Paterie Interioare. Bucharest: Meteor Press. ISBN 09738355680.

16.   Marshall, Dr Peter (2012). Introduction to Psychology. Manchester: Oakley Books Ltd. ISBN 9780956978486.

17.   Marshall, Dr Peter (2012). Understanding Human Memory. Manchester: Oakley Books Ltd. ISBN 9780956978424.

18.   Marshall, Dr Peter (2012). Improving Your Memory: The unique five x five system. Manchester: Oakley Books Ltd. ISBN 9780956978462.

19.   Marshall, Dr Peter (2002). Effectiva Studier. Malmo, Sweden: Liber. ISBN 47064501.

20.   Marshall, Dr Peter (2012). A handbook of Hypnotherapy. Manchester: Oakley Books Ltd. ISBN 9780956978455.

21.   Marshall, Dr Peter (2012). Educating a Gifted Child. Manchester: Oakley Books Ltd. ISBN 9780956978479.

22.   Marshall, Peter (1991). How To Master Book-keeping. Plymouth: How To Books. ISBN 9781857030228.

23.   Marshall, Peter (1995). The experiences of gifted children growing up gifted :triangulations with the Gulbenkian Project. Manchester University: Ph.D.Thesis., ethos.510447.

24.   Marshall, Peter (1995). How To Master Book-keeping, 2nd Edn.. Plymouth: How To Books. ISBN 9781857030655..

25.   Marshall, Peter (1991) The Berries on Mulvy Island, Lancaster: Anport Publications. ISBN 9781874047001..

26.   Marshall, Peter (1994). How to Understand Finance at Work. Plymouth: How To Books,. ISBN 9781857030860.

27.   Marshall, Peter (2000). How to Understand Finance at Work. Singapore: Grolier.. ISBN 0 7172 9741 1..

28.   Marshall, Peter (1997). Mastering Book-keeping, 3rd Edn.. Plymouth: How To Books. ISBN 9781857034226.

29.   Marshall, Peter (1999). How To Master Book-keeping, 4th Edn.. Oxford: How To Books. ISBN 9781857034950..

30.   Marshall, Peter (2001). Mastering Book-keeping 5th Edn.. Oxford: How To Books. ISBN 9781857037524.

31.   Marshall, Peter (2003). Mastering Book-keeping 6th Edn.. Oxford: How To Books. ISBN 9781857038972..

32.   Marshall, Peter (2005). Mastering Book-keeping, 7th. Edn.. Oxford: How To Books. ISBN 9781845280727..

33.   Marshall, Peter (2009). Mastering Book-keeping, 8th. Edn.. Oxford: How To Books. ISBN 9781845283247..

34.   Marshall, Peter (2010). Mastering Book-keeping, 9th. Edn.. Oxford: How To Books. ISBN 9781845284466..

35.   Marshall, Peter (2011). Computerised Book-keeping. Oxford: How To Books. ISBN 9781845283971..

36.   Marshall, Peter (2013) Mastering Spreadsheet Bookkeeping, London: Constable  & Robinson. ISBN 978184528501..

37.   Marshall, Peter (2017) Mastering Bookkeeping, 10th Edn. London:Constable & Robinson.  ISBN 9781472137036

Marshall, Peter (2020) Engram The Elephant, Polegate: Oakley Books.

38.   Marshall, Peter (Marshall, P. “Writing reports”, Business Administrator, Jan 1995, pp. 39 6-7.). "Writing reports". Business Administrator: 6-7..

40.   Marshall, Peter (Marshall, P. “Stock control”, Business Administrator, Apl 1995, pp. 9-10.). "Stock control". Business Administrator.

41.   Marshall, Peter (Marshall, P. "Problem solving", Business Administrator, July 1995, pp. 4-5.). "Problem solving". Business Administrator: 4-5..

42.   Marshall, Peter (Marshall, P. "Writing reports", Career Secretary, Winter 1995, pp. 23-24.). "Writing reports". Career Secretary: 23-24..

43.   Marshall, Peter (Shedding the municipal mentality and developing an enterprise outlook). "Marshall, P. "Shedding the municipal mentality and developing an enterprise outlook", Local". Local Government Executive: 47-48.

44.   Marshall, Peter (Autumn 1993). "Left-brain accounting". Network: 22-23.

45.   Marshall, Peter (Spring 1994). "New skills needed in civil service management reform". Network: 46-47.

46.   Marshall., Peter (July 1996). "Seven pillars of wisdom". Business Education Today.: 40-41..

47.   Marshall, Peter (Autumn 1994). "How to study and learn". Network, The Government Training and Personnel Journal: 21-22.

48.   Marshall, Peter (Jun 1995). "Left-brain accounting:Correcting for cognitive style mismatches". Learning Resources Journal: 41-43.

49.   Marshall, Peter (Autumn 1993). "Left-brain accounting". Network, The Government Training and Personnel Journal: 22-23.

50.   Marshall, Peter (Marshall, P. “Peter Marshall on Open College: Spring 1988). "Peter Marshall on Open College: Introduction to the Series". Focus on Business Education.

51.   Marshall, Peter (Summer 1988). "Marshall, P. “Peter Marshall on Open College, Focus on Business". Focus on Business Education.

52.   Marshall, Peter (Autumn 1988). "Peter Marshall on Open College". Focus on Business Education.

53.   Marshall, Peter (Winter 1988). "Peter Marshall on Open College". Focus on Business Education.

54.   Marshall, Peter (Spring 1989). "Peter Marshall on Open College". Focus on Business Education.

55.   Marshall, Peter (Summer 1988). "Peter Marshall on Open College". Focus on Business Education.

56.   Marshall, Peter (Autumn 1989). "Peter Marshall on Open College". Focus on Business Educationi.

57.   Marshall, Peter (Winter 1989). "Peter Marshall on Open College". Focus on Business Education.

58.   Marshall, Peter (Spring 1990). "Computers in Education". Focus on Business Education.

59.   Marshall, Peter (Summer 1990). "The Gender Issue in Education". Focus on Business Education.

60.   Marshall, Peter (Autumn 1990). "The Influence of Home Background on Scholastic Achievement". Focus on Business Education.

61.   Marshall, Peter (Winter 1990). "High Ability and Low Scholastic Performance". Focus on Business Education.

62.   Staff Reporter (21 Feb 1991). "British expert offers know how on educational reform here". APN (The English Language National Newspaper in Portugal).

63.   Marshall, Peter (Feb 1991). "Is the Portuguese educational system ready for the needs of foreign business investment?". Algarve Gazette: 22-23.

64.   Marshall, Peter (Mar 1991). "Education for foreigners". Algarve Gazette: 22-23..

65.   Marshall, Peter (Jun 1991). "Escola de S. Lourenco". Algarve Gazette: 38-39..

66.   Marshall, Peter (April 1991). "Colegio de Vilamoura". Algarve Gazette: 26-27.

67.   Marshall, Peter (21 January 1992,). "Mind numbing heirs to Elvis". Lancashire Evening Post: p. 6.

68.   Marshall, Peter (January 2009) "Labour is killing off home sales, Western Daily Press, p. 12.

69.  Marshall, Peter (March 2014) “Finding the Way Forward”, Mensa Magazine,

71.  Marshall, Peter (Febrary 2015) “Finding the Memory Masters”, Mensa Magazine,

72.  Marshall, Peter (February 2016) “Its All in the Mind”, Mensa Magazine,

73.   Marshall, Peter (May 2018) “Now That Figures”, Mensa Magazine

74.   Marshall, Peter (September 2018) “The Science of Not Knowing”, Mensa Magazine.



Media Articles about Dr Peter Marshall and his work

1.       Manning, Jo (2 December 1998,). "Memory man learnt Welsh in just a week". South Wales Echo: p. 17.

2.       Meredith, Anna (9 Oct. 1999). "Misty, watercoloured memories? Try This". The Western Mail: p. 8.

3.       Hillier, Ceri (17 Oct 1998). "Mind Blowing Show". The South Wales Echo.

4.       Machin, Nick (11 Mar 1999). "Memory man puts cards on the table". Machin, N. “Memory man puts cards on the table”, South Wales Echo, 11 Mar 1999.

5.       Taylor, Penny (19 Mar 1999,). "Memory ace bids to be record breaker". South Wales Echo: p. 21.

6.       Staff reporter (7 November 1998,). "Book signing that you mustn't forget". Staff reporter,

7.       Book signing that you mustn’t forget”, South Wales Argus, 7 November 1998.: p. 12.

8.       Staff reporter (28 Oct 1998). "Testing memories". South Wales Echo.

9.       Wilding, J; Valentine, E., Marshall, P., and Cook, S. (1999.). "Memory, IQ and examination performance". Educational Psychology Vol. 19 (2).

10.   Price, Gareth (21 Feb 1998.). "Record bid is no pi in the sky". South Wales Argus.

11.   Robertson, Edward (17 April, 2003). "Memory Trick Not Just Pi in the Sky". London Evening Standard: p. 5.

12.   Staff reporter (19 February 1998). "Memory Challenge". South Wales Echo: p. 29.

13.   Staff reporter (20 Aug 1998,). "It’s π – not pies – with pints for the experts". South Wales Argus: p. 6.

14.   Rhys, Garmen; Morgan, Jeff (Rhys, G and Morgan, J. "Dysgu’r Gymraeg Ar Eich Cof" , Golwg 29 July (1998)). "Dysgu’r Gymraeg Ar Eich Cof". Golwg: 33.

15.   Lom, A (15 Jun 1990). "Dolphins pals flip their lids". Daily Star.

16.    Currie, Gillian (4 Aug 1990,). "Brain power that freed a dophin". Lancashire Evening Post: p. 8.

17.   Price, Gareth (7 January 2002). "Have you kept any resolutions?". South Wales Argus: p. 14.

18.   Staff reporter (13 Jan 1992). "Fans revenge". The Times.

19.   Staff reporter (13 January 1992). "Writer all shook up". Today.

20.   Kersey, Alan (4 April 1992,). "A Journey Into the Unknown". Cambridge Evening News (Book review section): p. 9.

21.   Morley, Jaqueline (22 Sept 1989,). "In the Mind Maze". Blackpool Evening Gazette: p. 14.

22.   Staff reporter (November 1989). "Mensa's educational researcher, Peter Marshall…". Mensa Magazine.

23.   Escola Superior de Educacao de Leiria; Associacao dos psicologos Portugueses (February 1991). "Gender disadvantage in education". A accao educativa:accao educativa:analise psico-social (II seminario nacional resumos): 11-11.

24. Healey, R. (July 2020) A life in the round; Life and times of Peter Marshall. The ultimate polymath, Mensa Magazine, pp. 20-22.





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