Introduction: Population Without Age.- The Life Table.- The Matrix Model Framework.- Mortality Comparisons; The Male-Female Ratio.- Fixed Regime of Mortality and Fertility: The Uses of Stable Theory.- Birth and Population Increase from the Life Table.- Birth and Population Increase from Matrix Population Models.- Reproductive Value from the Life Table.- Reproductive Value from Matrix Models.- Understanding Population Characteristics.- Markov Chains for Individual Life Histories.- Projection and Forecasting.- Perturbation Analysis of Matrix Models.- Some Types of Instability.- The Demographic Theory of Kinship.- Microdemography.- The Multi-State Model.- Family Demography.- Heterogeneity and Selection in Population Analysis.- Epilogue: How Do We Know the Facts of Demography?.