A best and effective document content the short and clear information in a very professional way. If you want to attract any investor so make document accordingly. First you can do some research and explain your strategy which plan you have to maximize the profit. Be confidant and trust on yourself. If you show soe facts and figures then is is an advantage for you.
Business plan
1st prepare yourself. Before you ever pitch to the most important people you'll ever meet, you have to understand that it's not the idea that important, it's the execution. The angel investor is not only investing in the company but they're investing in you because they believe in you to grow your company and take it to the next level. Doesn't matter if your idea is the next Facebook that will kill today's Facebook, if you're not passionate about what you're doing then 1 of 2 things will happen. 1)They'll say right idea, wrong guy= no investment. 2) right idea, wrong guy and investment but then they'll find a way to get rid of you even after due diligence.
So i say prepare yourself. That's more important. Also, would help if you learn the business vocabulary.
What documents do I need for that ? Only a business plan ?