In today's world, population is on a rapid rise and the level of pollution is rising every day. Thus, materials recycling is the concept which is very important in the present scenario. It refers to the process of converting the old waste material into some new and useful product. This process helps in reducing different types of pollution like greenhouse gas emissions, water pollution, etc. It also reduces the consumption of fresh raw material, energy wastage, and also helps reduce waste. This book is compiled in such a manner, that it will provide in-depth knowledge about the theory and practice of materials and recycling. The topics covered in this extensive book deal with the core subjects of materials recycling. This textbook will serve as a reference to a broad spectrum of readers.