:# Ask , who removed them with the rationale that "Wikipedia is not a newspaper". In my view, brief quotations by notable reviewers for selected works might be appropriate, but in the end, this article is about the person, not his books, so quotations from reviewers aren't relevant, particularly if the books aren't notable. If any of his books merit stand-alone articles, then the quotations should go there. But if they don't merit stand-alone articles, they don't merit quotations here either. 
 :# I tagged the article as COI for that reason, as well as your paid-editing disclosure. COI all around. Had you proposed substantial content changes on the talk page like other COI editors, that tag would not be necessary. 
 :# I agree, the sourcing is much improved. That is why I removed the notability tag. ~