Inorganic nanomaterials are an extremely broad and versatile class of materials and their enhanced chemical, thermal and mechanical stability with respect to their organic counterparts make them appealing candidates for a wide range of technological applications. Recent research has explored novel synthesis routes relying on non-standard conditions and in many cases, these unconventional routes are inherently sustainable. This book will provide a much needed overview of the fast-developing areas of green synthesis of metal nanoparticles, metal oxides and metal sulphides. These have a broad range of applications, including in catalysis, electronics, optics and nanomedicine. It will also show how it is possible to combine environmental and economical sustainability and will provide readers with a state-of-the-art and updated overview of lesser-known and emerging synthesis routes for inorganic nanomaterials. Suitable for advanced undergraduates, postgraduates and other researchers, it provides a convenient introduction to the topic.