Description: Comprising: ESA 2003 (11th Annual European Symposium on Algorithms); WABI 2003 (3rd Workshop on Algorithms in Bioinformatics); ATMOS 2003 (Algorithmic Methods and Models for Optimization of Railways); WAOA 2003 (Workshop on Approximation and Online Algorithms). Budapest, Hanugary; 15--20 September 2003.