 By 2003, he'd had more than 50 books published, and was recognized as one of the world's biggest-selling authors of music tuition titles, with sales of well over 2 million books in the US alone.During this period he also embarked on an additional career as an occasional university lecturer.In 2004, Burrows emerged again with a typically colorful selection of music projects, the most significant of which was the resumption of his collaboration with US home-recording pioneer R. Stevie Moore.