CONTENTS: Acknowledgement, List of Tables, List of Figures, Abstracts, 1. Introduction, 2. Data, Methods, and Quality of Data, 3. Infant Death Clustering Among Families in Developing Countries: A Systematic Review, 4. Levels, Trends and Differentials in Mortality and Fertility and Death Clustering: A District Level Analysis, 5. Clustering of Deaths in Families and Maternal Competence, 1992-2016-A Decomposition Analysis, 6. Infant Mortality and Death Clustering at District Level of India: A Bayesian Approach, 7. Summary and Conclusions, 8. Policy Implications, References.