The vast literature on the Ag-NPs is present in the form of individual research articles that focuses only on the minor application part, we aimed to summarize it in the present review form so that the interested readers may find all recent information ranging from synthetic procedures to application in a single document. This book aims to summarize the various methods adapted for the synthesis of Ag-NPs and the area in which these Ag-NPs were, are, and to be used so that it can be easy for common readers who wants to seek information related to these nanoparticles .In this book every aspect of Ag-NPs, from synthesis to their application in the fields of environment, science, biology, molecular science, textiles industry, and last but not the least their role in medicinal fields, has been briefly explored. Besides, the future prospect of these nanoparticles in day to day life is also discussed.