Java servlet programming - covers 2.2 and 2.3 draft (2. Aufl.). - Jason Hunter; William Crawford (O'Reilly, 2001)

Java enterprise in a nutshell - a desktop quick reference: covers J2EE 1.3 (2. ed.). - Jim Farley; William Crawford; David Flanagan (O'Reilly, 2002)

J2EE design patterns - patterns in the real world. - William Crawford; Jonathan Kaplan (O'Reilly, 2003)