Author the book The Art of Living. Notably, he is directly quoted as saying:

My name is on the cover of the book, so people call me the author. But, really, the author is [S. N. Goenka].

This is a humble half-truth. The book is a presentation of Vipassana meditation as taught by S. N. Goenka, including ample direct quotation from Goenka's own discourses. In between these discourses, Hart writes in substance about The Buddha, Buddhism, and Vipassana.