I heartily recommend new publication
Here Come The Kung Fu Clones by Carl Jones.
Covering the Brucesploitation subgenre the book is well illustrated and written despite the presence of a few typos. The good thing is, Bruce Li gets pretty much half the tome devoted to him as befitting the best known 'Little Dragon' impersonator.
Of course, fellow Bruce Lee impostors Dragon Lee and Bruce Le get exposure within the book's pages but imo
HCTKFC is Bruce Li's baby all the way.