This is the second announcement of the Union College Mathematics Conference. The conference will take place November 8-9, 2003 at Union College in Schenectady, NY. There will be plenary talks and parallel sessions for contributed talks in algebraic topology, category theory, and differential geometry. For more information about the conference, including registration, submission of abstracts, housing and transportation, please visit our website at: http://www.math.union.edu/~leshk/03Conference/ The deadline for submission of abstracts is October 17th, and for registration is October 24th. We hope to see you in November! ORGANIZERS Category Theory Susan Niefield niefiels@union.edu Kimmo Rosenthal rosenthk@union.edu Algebraic Topology Brenda Johnson johnsonb@union.edu Kathryn Lesh leshk@union.edu Differential Geometry Christina Tonnesen-Friedman tonnesec@union.edu