Michael Staley of Starfire Publishing, the most recent publisher of Grant’s work, wrote:

Kenneth Grant died on 15th January 2011 after a period of illness. Our condolences go first and foremost to his family, whose privacy is something which we all wish to respect at this difficult time.

Kenneth Grant had an extraordinary life, and his work has a remarkable depth and breadth of magical and mystical insight. In particular, his monumental series of Typhonian Trilogies is creative, innovatory and inspiring, extending across thirty years from the publication of the opening volume The Magical Revival in 1972, to the appearance of the final volume The Ninth Arch in 2002. This is a substantial body of work, constituting a solid foundation for further development, widening and deepening in the years to come; his work will continue.

Starfire Publishing: In Memoriam: Kenneth Grant

(via Wes)