Mathematician Meyer marks a course between the rigorous accounts of stochastic integration that demand deep mathematical background, and the non-technical descriptions of applying it to finance that often entail manipulating symbols that remain unexplained. His goal is to balance aesthetic appeal, degree of generality, depth, and ease of reading as he offers a rigorous development of the theory as it applies to the valuation of derivative securities. He assumes only a basic knowledge of measure theoretical probability and Hilbert space theory. Annotation c. Book News, Inc., Portland, OR