Part 1: Theory and methods: Structured population models: basic concepts and contrasting methods, H. Casweell, S. Tuljapurkar, R. Nisbet, and A. de Roos; Methods in matrix population models, Hal Caswell; Stochastic matrix population models, Shripad Tuljapurkar; Nonlinear matrix models in population dynamics, J.M. Cushing; Delay differential equations for structured populations, Roger Nisbet; Partial differential equation models for physiologically structured populations, Andre de Roos. Part 2: Applications: Spatio-temporal variation in demography of a tropical herb: empirical data and projection matrix analysis, Carol Horvitz; Stochastic models, life history evolution, and extinction, Steve Orzack; Population and genetic dynamics of Tribolium, Robert Desharnais; Structured population models in genetics and evolution; Ocean physics and population dynamics, Tom Powell; Density-dependent recruitment and age structure in marine fisheries, Lou Botsford; Structured population models in the marine plankton, Eileen Hofmann; Marine polychaetes: effects of developmental mode and pollution, Lisa Levin; Structured population models: marine-terrestrial comparisons; Stochastic demography for conservation, C.S. Nations and Mark Boyce; Structured population models in conservation and management; Nonlinear ergodic theorems and symmetric versus asymmetric competition, Kathleen Crowe; It takes two to tango: pair formation in demography and epidemology, Carlos Castillo-Chavez; Parameter estimation and inverse problems in structured models, Simon Wood. (Part contents).