<P>Proof of the "Fundamental Theorem of Asset Pricing" in its general form by Delbaen and Schachermayer was a milestone in the history of modern mathematical finance and now forms the cornerstone of this book.</P><P>Puts into book format a series of major results due mostly to the authors of this book.</P><P>Embeds highest-level research results into a treatment amenable to graduate students, with introductory, explanatory background.</P><P>Awaited in the quantitative finance community.</P>