Les Edwards has been an illustrator for almost 45 years. He has worked for all the major UK publishing houses and for many in the US, and his work has also encompassed advertising, gaming, record and CD covers, and film posters. He has also illustrated two graphic novels based on stories by Clive Barker—Son of Celluloid, and Rawhead Rex. Although best known for his fantasy and horror images, he has in fact worked in a variety of genres and still seeks to do as wide a variety of work as possible. His paintings are to be found in private collections worldwide.

Les also paints under the pseudonym "Edward Miller" in order to do a different kind of work and use a more romantic style. This work has also become popular, and Les now pursues both careers with equal enthusiasm.

In 1995 he was Artist Guest of Honour at the World Science Fiction Convention in Glasgow and in 2010 he was Artist Guest of Honour at the World Horror Convention held in Brighton, UK. In 2014 he was Artist Guest of Honour at the World Fantasy Convention in Washington DC.

He has been voted Best Artist by the British Fantasy Society on seven occasions. He has been nominated for the World Fantasy Award for Best Artist five times (his alter-ego, Edward Miler, won it in 2008). He has been nominated for five Chesley Awards.