Theory of motives, homotopy theory of varieties, and dessins d'enfants April 23 to April 26, 2004 AIM Research Conference Center, Palo Alto, CA Organizers: Gunnar Carlsson and Rick Jardine Workshop topics: This workshop, sponsored by AIM and the NSF, will bring together topologists working in the developing area of "homotopy theory of varieties" with number theorists and algebraic geometers working in subjects related to Dessins d'enfants, and to expose them to the techniques and ideas of the various subjects involved both in the number theoretic and topological areas. Application deadline: December 1, 2003 For more information: http://aimath.org/ARCC/workshops/motivesdessins.html