A student asks: I heard that Monodromy is a general concept in category theory involving the globalization of local morphism. In Algebraic Quantum Field Theory, i.e. operator algebras in QFT, local morphism are the main stay,i.e. O-->R(O). Do you know of any Intro. to Monodromy/Holonomy text I can begin from?, I'm at the level of Mac Lane's "Categories for the working Mathematican" 1998 and Mac Lane, Moerdijk "Sheaves in geometry and logic. A first into to Topos Theory" 1992. Thanks Jim Stasheff jds@math.upenn.edu Home page: www.math.unc.edu/Faculty/jds As of July 1, 2002, I am Professor Emeritus at UNC and I will be visiting U Penn but for hard copy the relevant address is: 146 Woodland Dr Lansdale PA 19446 (215)822-6707