Marketing Management by Philip Kotler is the best marketing textbook ever. You'll learn everything from market segmentation, target marketing, value chains, marketing mix, etc.
Another great book is Marketing Gurus which is a summary of at least 12 business books ranging from Seth Godin to Jack Trout to Anatomy of a Buzz to Guy Kawasaki and more. It is compiled by Chris Murray. Just search it on Amazon. You can't miss it.
As for project management, go to
www.tompeters.com then click on wherever it is in that site that books and ebooks are sold. I'm sure there are some stuff there about project management and they are guaranteed to be good.