Cloud computing beginner to researcher has been written for novice and researchers. It provides enough concept to know the basic concept of cloud computing, substantiated by ample of examples and screenshot. This book is equally important for those, who are working in the are of cloud research. it gives due references of what has been included as well as related work on many of the significant topics. This book has given major focus on security, virtualization and business issues related to cloud computing. We firmly believe that this book will benefit to all the readers who intend to know about the cloud computing.