I was also saddened to hear this news When I first started getting interested in woodworking I remember reading an article about his woodwork school in Good Woodworking magazine, must be 20+ years ago. I went on to buy 3 of his books shortly afterwards and this sparked my interest in learning to to fettle, sharpen and use the basic handtools. All this before youtube, it was a revelation to use sharp tools that worked well and understand the importance of accurate marking out etc. So thank you to David Charlesworth, may he Rest in Peace.