Design Pattern Books

After a long hiatus due to project and personal commitments, I thought I should start posting here again.

I was asked today, do I know any good books on patterns. So, for future reference, here is my list, stating off with the classic:

Design Patterns: Elements of Reusable Object-Oriented Software (Addison-Wesley Professional Computing Series)
by Erich Gamma, Richard Helm, Ralph Johnson, John Vlissides

Patterns of Enterprise Application Architecture
by Martin Fowler

Enterprise Integration Patterns : Designing, Building, and Deploying Messaging Solutions
by Gregor Hohpe, Bobby Woolf

Pattern-Oriented Software Architecture, Volume 1: A System of Patterns
by Frank Buschmann, Regine Meunier, Hans Rohnert, Peter Sommerlad, Michael Stal, Peter Sommerlad, Michael Stal

Pattern-Oriented Software Architecture, Volume 2, Patterns for Concurrent and Networked Objects
by Douglas Schmidt, Michael Stal, Hans Rohnert, Frank Buschmann

Analysis Patterns : Reusable Object Models (Addison-Wesley Object Technology: Addison-Wesley Object Technology Series)
by Martin Fowler