How to quickly pick up the knowledge of M&A and financial markets before interview

Hey Monkeys.

I am in the back office at a EB and recently randomly applied for an M&A position and luckily got an interview. The interview schedule is tight and only two days away.

Honestly, I never expected the interview to come and literally don't know much about M&A and financial markets. Can anyone shed some light on how to quickly pick up the knowledge of M&A and financial markets to be well equipped for the interview? 

Thank you in advance!