He had an awesome column on chesscafe.com -- many are archived and free at
https://web.archive.org/web/20140714190611/http://www.chesscafe.com/archives/archives.htm
Further, he collected the best of those columns, edited them, etc., and put them into an incredibly awesome book called A Guide to Chess Improvement: The Best Of Novice Nook, https://www.amazon.com/Guide-Chess-Improvement-Best-Novice/dp/1857446496
Run, don't walk, to get this book. It outlines a method of improvement. I'm still reading it right now, but I have found what I have read thus far to be incredibly eye-opening, with *a lot* of common sense suggestions, that seem so obvious once he says them, that almost nobody else is saying.
Dan Heisman is the best chess coach and his videos are now available to chess.com members. His videos have always helped me to improve my game. You can find them at https://m.youtube.com/c/danheismanchess