Considered a risk-taker, he was quoted as saying: “You have the freedom, and I'd be inclined to say, the duty, to publish books of a minority interest and titles whose time may not yet have arrived or ideas that challenge received wisdom.”
Mr Hecht received the first Lifetime Achievement award at the British Book Awards in 2001 and was awarded an OBE for services to publishing and charity in 2015.
He was also founder of the Ernest Hecht Charitable Foundation, set up in 2003, which awards grants to charities that benefit the vulnerable and promote the advancement of the arts and education.
A spokesperson for Souvenir Press said Mr Hecht was “much more than a publisher”, describing him as “wise and witty.”
Liz Thomson, a book trade publicist, said: “Whatever the subject, Souvenir Press had published the first book on the subject.”
Mr Hecht died in hospital on Tuesday after a short illness.