What is the best Ebook on marketing ever written? And I'm not looking for some obscure ebook that only 2 people know and neither do I want to read any of your self glorifying freebies. Is there any marketing ebook that there's a generally accepted consensus over as being THE best among similar ebooks? I've read a bunch of trash free and not free ebooks and haven't learned a single new thing. So I'm looking for something that's genuinely informative and goes in depth on the subject of marketing. Any suggestions? Thanks. Appreciate it.