A few years back (1993) Al Ries & Jack Trout introduced
The 22 Immutable Laws of Marketing. It's an extremely quick read and is a great beginners book to marketing. The 22 laws are applicable to marketing on any scale. However, the examples the authors use are just a touch out of date theses days. Companies such as MCI, Sega, Commodore, etc. are mentioned as examples. Some readers may say "who?"
Anyway, several people at work had read this book and it had come up in some discussions, so I decided to take a look myself. Combining these 22 laws within some of the other marketing frameworks we use will still be helpful.