Wyman has kept a journal since he was a child after the second World War. It has been useful to him as an author who has written seven books, selling two million copies. Wyman's love of art has additionally led to his profiency in photography, and his photographs have been hung in galleries around the world. Wyman's early interests, and lack of funds in his early years led him to create his own fretless bass guitar, an amplifier and much later, a patented metal detector. He became an amateur archaeologist and enjoys relic hunting; The Times published a letter about his hobby (Friday 2 March 2007). He markets a "Bill Wyman signature metal detector", which he has used to find relics from the time of the Romans in the English countryside. As a businessman, he owns several establishments, including the famous Sticky Fingers Cafe in 1989, a rock & roll-themed bistro serving American cuisine first in the Kensington area of London, which now has two additional locations in Cambridge and Manchester, England.
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