Ramnivas Laddad is a Sun Certified Architect of Java Technology. He has worked with object-oriented systems for many years and with aspect-oriented programming for the past three years. He is the author of several articles and papers and co-author of Professional Java XML. His article series on AOP and AspectJ was published in "JavaWorld." He lives in Sunnyvale, California. Ramnivas Laddad is a well-known expert in enterprise Java, especially in the area of AOP. He is the author of AspectJ in Action, the best-selling book on AOP and AspectJ that has been lauded by industry experts for its presentation of practical and innovative AOP applications to solve real-world problems. Ramnivas, a Spring framework committer, is also a very active presenter at leading industry events, and has been an active member of both the AspectJ and Spring communities from their beginnings.