I suggest
1. The Blue Ocean Strategy - by W. Chan Kim & Renee Mauborgne
2. The 22 Immutable Laws of Marketing - by Al Ries & Jack Trout
3. Epic Content Marketing: - by Joe Pulizzi
4. Blue Ocean Shift - by W. Chan Kim & Renee Mauborgne
5. Purple Cow: Transform Your Business by Being Remarkable - by Seth Godin
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