The book contains ten chapters. Chapter 1 deals with classification of propellants and explosives. Mechanism of thermal decomposition of ammonium perchlorate (AP) has been given in Chapter 2. Synthesis and characterisation of various types of nanomaterials such as oxides, ferrites, cobaltites, oxalates, mono, bi and tri metals of transition metals, and oxides of lanthanides have been discussed in Chapter-3. These have been found to be potential thermal decomposition and burning rate catalysts for AP and composite solid propellants. The preparative methods for various types of nanoenergetic compounds have been described in Chapter 4. Thermolysis of various types of nitrate, perchlorate, and NTOate salts has been discussed in Chapters 5-7. Preparation and characterisation of transition, lanthanoids metal nitrate, and perchlorate complexes with ligand of various amines have been described in Chapters 8-10. In each group of compounds, the structural properties of the individual compounds are determined by gravimetric, IR and NMR studies. For those compounds which gave crystals, X-ray crystallography technique was undertaken to determine their structures. The results obtained from thermoanalytical and kinetic investigations related to the thermal decomposition, ignition/explosion and combustion of the compounds have also been described. The author hopes this book will be of interest to everyone involved with energetic materials irrespective of their background. This will prove useful to the serious college students as a text, to the engineers interested in the broad aspects of aerospace, and as an introduction to the propulsion of missiles or space vehicles. This book will be helpful to the people working in R&D laboratories, Universities, Institutes, Production agencies, Forensic laboratories, Armed forces (Army, Navy and Air Force), Quality assurance, Homeland securities, Chemical Industries etc. This book will be of immense use to organisations dealing with the production of commercial explosives and allied chemicals. It is hoped that this compilation of work will serve to stimulate more interest and promote further progress in the research into the properties and applications of these family of compounds reported in this book.