Ken Pugh
Ken Pugh has extensive experience in the area of software analysis and design, both as a doer and as a teacher. He's a well-known, frequent conference speaker, and the author of Prefactoring, from O'Reilly.

Interface Oriented Design Interface Oriented Design (Pragmatic Bookshelf)
by Ken Pugh
July 2006
Print: $29.95

Prefactoring Prefactoring
by Ken Pugh
September 2005
Print: $29.95
Ebook: $23.99