Credibility packet? How do you build one? When should I have one?

[Edy Lagares]

I'm an investor in the making, I'm trying to build my marketing materials and I'm having a hard time thinking of what to put on my credibility packet. 

Should I even have one from the beginning?

What should a new investor have in there if he/she have no deals yet and no experience?

Any tips or suggestions? It would be greatly appreciated.