The book is intended to provide an understanding of the fundamental principles and practices of biostatistics. It has been written with the aim of offering a comprehensive insight into the basic concepts of this field, making it accessible, easy to read, and relevant to both students and practitioners of biostatistics. The book covers topics such as the design of clinical trials and epidemiological studies, data collection, research methods, clinical measurement, sample size calculations, and various study designs. As a result, it serves as a comprehensive handbook of biostatistics for students and researchers in agriculture, veterinary medicine, life sciences, medicine, public health, biological sciences, and social sciences. The book has been written to provide readers with a clear understanding of the concepts and methods of biostatistics, making it an essential resource for anyone who needs to apply statistical methods in their work.