Any book requires the coordinated effort people and I salute everyone who has worked so diligently to ensure the quality of this book.
My heartfelt thanks to Arshia Yasmin and Fahad Hussain for their valuable contributions. I appreciate Arshia Yasmin's research assistance. Special thanks to Muhammad Iqbal Noor Khan for his insightful assistance in editorial works, Nadia Fahad, Gulnashin Asad and Hena Bilal for their revision of the book. A thousand thanks you to Salahuddin Ayubi and Asad Hussain for their careful attention to manuscript preparation. My special thanks to Fahad Hussain for cou ntless creative contributions, and for creatively designing the pages and also to Kamran Hussain for stepping in with enthusiasm and giving suggestions and efficient reviews and proof-reading.
I am especially grateful to my Wife Yasmin for her continued patience and support. I also thank our many reviewer s for their comments to this edition.