This book explains the potential value of microbiome and microbiome composition associated with human health and diseases. The opening chapters describe the current state of knowledge regarding the human microbiome structure, function, and diversity. The mechanisms of action and the various putative uses of human microbiome are then examined specific to healthy and disease conditions. Readers will find detailed information on its manipulation of human microbiome studies as well as its applied and translational aspects in the current field. The latest knowledge on probiotics, prebiotics, synbiotics, and postbiotics is presented, and specific cases to date are discussed. This book features knowledge from leading researchers working on different aspects of the human microbiome and its manipulation for better health. Overall, this book is an excellent source for microbiome researchers and students from all levels seeking the most up-to-date advancements in the field and also to point toward the future directions.