Are you talking about online marketing or more traditional offline marketing ? People often talks about "Crossing the Chasm" and "The Long Tail", here are few more such books <a href="http://www.inc.com/geoffrey-james/top-10-marketing-books-of-all-time_1.html/4" rel="nofollow">http://www.inc.com/geoffrey-james/top-10-marketing-books-of-...</a> though these are not your Marketing 101 books.<p>IMO this list looks to have good How to marketing type of books <a href="http://www.amazon.com/Top-Marketing-Books-All-Time/lm/3JOLQUOTP0K0T" rel="nofollow">http://www.amazon.com/Top-Marketing-Books-All-Time/lm/3JOLQU...</a>