The 16 Rules of Brand Strategy
If you're developing your strategy, use this list to guide you. If you already have one in place, use this list to test it. Most importantly, read this through a brand lens. When I mention companies below, measure them by their brand identities, not their product offerings. Strong brands are unique.
https://medium.com/@TripleJas/the-16-rules-of-brand-strategy-6a8d4a0cbad0