Intro from newbie and need some suggestions

Hey everyone. I am currently a third year business student at a Canadian University, and just recently got accepted for internship at one of the largest South East Asian Investment Bank. I just decided that I want to pursue Finance as my concentration, and I have been reading a lot of book about Investment Banking lately. I have no background nor anything related with Investment Banking before, not even in my family. And because of that, I need some suggestion from you; 1. What book should I read to understand Investment Banking as a whole? 2. What do I need to prepare for my upcoming internship? I never had Investment Banking experience before

Thank you!