The following pdf file contains the table of contents and the first three chapters of the book:
Quantitative Strategies for Derivatives Trading (left click to download).
This will tell you: (i) what this book is about, (ii) the level of mathematics involved, (iii) the writing style.
You will then have enough information to decide if this is the right book for you.

The material in the following three articles is a good place to start:
(Please read them in the order listed below)
Beyond Black-Scholes Option Theory
Derivatives Pricing and Trading in Incomplete Markets: A Tutorial on Concepts
A Simple Jump to Default Model