Using proof can help establish strong relationships with your customers.
5 kind of proofs:
Proof of concept
Proof of personal relevance
Proof of promised benefits and outcomes
Proof of superiority
Proof of concept
http://www.entrepreneur.com/article/224136
5 kind of proofs:
Proof of concept
Proof of personal relevance
Proof of promised benefits and outcomes
Proof of superiority
Proof of concept
http://www.entrepreneur.com/article/224136