There are 2 books for those who are interested in pursuing a career in IB.
1. Monkey Business: Swinging Through the Wall Street Jungle by John Rolfe & Peter Troob
2. Liar's Poker: Rising Through the Wreckage on Wall Street by Michael Lewis
Both books were written by people who used to work in IB.
Monkey Business is hilarious. The authors may exaggerated on certain topis but they deliever the concept in a very logical and clear manner. You'll get the full picture of what IB is like. THEN you can contemplate whether IB is really the one for you or you just purposelessly following the general trend.