It gives us great pleasure to present a book on predictive secure virtual machine placement in a decentralized cloud environment. The book is written such that the basics of cloud computing explained in a simpler way considering the readers who want to learn the internals of cloud computing. I would like to this opportunity to welcome you to the secure virtual placement in the decentralized cloud. I tried to balance in presenting the importance of prediction aware virtual machine placement. I encourage you to adopt a similarly open and critical stance when reading this book.