Al-Ghitani, Gamal. The Mahfouz Dialogs. New York: The American University in Cairo Press, 2007.
El-Enany, Rasheed. Naguib Mahfouz: His Life and Times. Cairo: The American University in Cairo Press, 2007.
Salmawy, Mohamed. The Last Station: Naguib Mahfouz Looking Back. New York: The American University in Cairo Press, 2007.
Serour, Aleya, ed. Naguib Mahfouz: Life's Wisdom from the Works of the Nobel Laureate. New York: The American University in Cairo Press, 2006.
If you want to read English translations of other Egyptian novels, you might enjoy:
Taha Hussein's A Man of Letters, 1994
Hala El Badry's A Certain Woman, 2003
Gamal al-Ghitani's Zayni Barakat, 2004
Bahaa Taher's Love in Exile, 2005
If you enjoyed The Thief and the Dogs, you might enjoy:
Dashiell Hammett's The Maltese Falcon, 1930
Albert Camus's The Stranger, 1942
Graham Greene's The Heart of the Matter, 1948
Nadine Gordimer's The Pickup, 2001
American University in Cairo Press
This website contains a complete bibliography of Mahfouz's works including those in English translation, information about the author, and biographies written about Mahfouz.
The Nobel Prize
This website includes biographical information, a bibliography, an interview, and a transcript of Mahfouz's Nobel lecture.