I looked into this a while ago myself. From what I found, I liked Nigel Priestley's "Displacement-Based Seismic Design" book the best. If you're looking for a book that simply works through the design codes step by step, then there are better books.
Note that with most seismic texts, it is beneficial if you at least have a graduate level background in structural dynamics.
Anil Chopra's Dynamics of Structures is great. Using it myself now to brush up on the subject after a few years. Page xxxii of the preface has a direct reading path if you are a practicing engineer. Chaptes 1 to 3 give the basic mechanics. Chapters 6 and 7 provide the theory behind response of structures to earthquakes, and Chapters 18 through 21 relate that to the actual codes.
Clough and Penzien's is good too, and best if you need a more detailed walk through in mechanics of vibrations.
It's got a number of chapters on more advanced topics (Base Isolation, Performance Based Design Procedures, et cetera).
I swear that I'm not related to Farzad Naeim (or any of the other authors), I just think it is a very good reference for a wide variety of seismic topics.