If you are looking for inspirations...these are the top ones:
1) How I became a Quant : Stories of 25 Top Quants
2) My life as a Quant, by Emmanual Derman
3) Working the Street by Erik Banks
4) Liar's Poker by Michael Lewis
5) Fooled by Randomness by Nassim Nicholas Taleb
6) The Complete Guide to Capital markets for Quantitative Professionals
7) Nerds on Wall Street: Math, Machines and Wired Markets by David J. Leinweber
8) Physicists on Wall Street and Other Essays on Science and Society by Jeremy Bernstein
To know Financial Engineering as a subject, you can surf through these:
1) Martin Baxter & Andrew Rennie, Financial Calculus: An Introduction to Derivative Pricing
2) Jamil Baz and George Chacko, Financial Derivatives
3) Salih Neftci, Introduction to the Mathematics of Financial Derivatives
4) Steven Shreve, Stochastic Calculus for Finance I, Stochastic Calculus for Finance II
5) Paul Wilmott, Derivatives: The Theory and Practice of Financial Engineering
6) Paul Wilmott, Wilmott's Quantitative Finance (three volumes)