"Designing Clinical Research: An Epidermiologic Approach" did a thorough analysis of various methodologies, which medical scientists could use in everyday research. It, first of all, outlined all the essential steps (used in epidemiological research), before delving into the analysis of each step. Its information is current and versatile. But, certain important issues like research-funding and statistics received less than expected attention. Despite this flaw, I would still recommend this book to scientists. Its pros did exceed its cons by a mile.