To Vlog or not to Vlog

I'd love to start vlogging, but seeing as I have never successfully vlogged before, and that I only have my iPhone as a camera, I'm quite scared.

I'd be book vlogging, and it would be pretty irregular, I'm sure. But how to start? What to talk about (well, aside from books obviously!) Would anyone actually watch my videos?!

I'd love to know if anyone who reads this vlogs, or if they know any tips or tricks that might help me. Do you have any favourite vloggers who might inspire me? Let me know :)