First and foremost, we are grateful to all the contributing authors for their time, effort, and understanding during the preparation of the book.

We thank Albert Zomaya, editor of Wiley book series on parallel and distributed computing, for his enthusiastic support, enabling us to easily navigate through Wiley's publication process.

Raj would like to thank his family members, especially Smrithi, Soumya, and Radha Buyya, for their love, understanding, and support during the preparation of the book. Satish would like to thank his wife, Gayatri, and parents (S. Lakshminarayana and Lolakshi) for their love and support and his new born daughter, Meghana, for the pleasantness she brought into the family.

Finally, we would like to thank the staff at Wiley, particularly Brett Kurzman (senior editor) and Victoria Bradshaw (editorial assistant). They were wonderful to work with!