He has an online blog with a compilation of his posts, but I do not think he's published a book.
FYI: https://www.pianostreet.com/smf/index.php?topic=36311.msg416468#msg416468Could that be the one you recall seeing, Ranjit?
The writer of that blog you linked does state outright that he is not the writer of the articles unless he has put his own name on them [...]