I agree. I've published three books with a publisher, and the one I'm most proud of and which got the best reviews (19 ratings on Amazon, all 5 stars) is the m

I agree. I've published three books with a publisher, and the one I'm most proud of and which got the best reviews (19 ratings on Amazon, all 5 stars) is the most niche, and got the lowest sales numbers. https://smile.amazon.com/Parsing-Perl-Regexes-Grammars-Recursive-ebook/dp/B0785L6WR6/ https://smile.amazon.com/Parsing-Perl-Regexes-Grammars-Recur... if anybody is interested.