Synopsis The current emphasis on studying intermediate variables in the process of child bearing has led researchers to devise methods of ascertaining them either directly from the surveys or indirectly from related observable facts. In consequence, the study of birth interval dynamics has gained wide interest particularly because of its potential use in assessing the effect of socio-economic factor on fertility. A project entitled “Birth Interval Dynamics in the Study of Fertility: Estimation and analysis” was undertaken at the International Institute for Population Sciences, Bombay, under an award from the Rockfeller Foundation, New York. A Workshop was organized during the Tenth annual Convention of the Indian Society for Medical Statisticians (ISMS) at the Institute to discuss the models adopted in the project and the estimates of various parameters of fertility representing the two important aspects namely tempo and quantum of fertility. During the workshop, it was decided to bring out a volume to document such important works at one place. This volume includes thirteen selected papers incorporated in the proceedings of the workshop. This volume would be of great help to the researchers studying the complex mechanism of child bearing in general and birth intervals in particular.