From Wikipedia (Dutch version) :
Jonathan Levitt , Jon, (born in 1963) is a British chess player . In 1984 he became a FIDE International Master and in 1994 a FIDE Grand Master.
Levitt wrote chess anecdotes on the (no longer existing) chess portal kasparovchess.com . He also has a chess column in “Oxford Today”. Levitt is also known for his talent tests and he is also a chess teacher. Moreover, he is a master in endgame studies. He takes chess photos, some of which can be seen in Wikipedia.
Levitt is also the author of several chess books: “Secrets of Spectacular Chess”, “Genius in Chess”, “Advice on Improving Your Game”. He also makes chess videos for the internet.
From chessgames.com :
“Jonathan Paul Levitt was born in Southwark (London), England. Awarded the IM title in 1984, he is now a GM (1991) and a composer of problems. Winner of the Staunton Memorial in 2005. His notable works as an author include “Secrets of Spectacular Chess” and “Genius in Chess”.”
Jonathan achieved a peak rating of 2495 in January 1989 at the age of 26 and lives in Ipswich.
He shared 1st place the GLC Masters in 1986 with 10.5/15 with Neil McDonald :
and was first equal with Jonathan Speelman in the Third Staunton Memorial in 2005 :
Here is his personal web site