Medina Gomez, Antonio, Monedas Hispano-Musulmanas, Institut Provincial de Investigaciones y Estudios Toledanos, Diputacion Provincial de Toledo, Toledo, 1992, 549 pages, softcover. A fantastic textbook introducing the history and identification of coins of Islamic Spain, including dynasties that also occupied north Africa. It has the best guides to reading the different calligraphy styles I have seen, and has lists of coin-issuing people in each dynasty. The photos of coin types are exceptional, ex James Farr Collection Library.
Estimate: 40-60 USD