About Us


About Us

Contact Us at

Email: walter@docwalt.com
Cell Phone: 1-973-809-8008

About Conceptual Product Development, Inc.

Founded by Walter Silva, Conceptual Product Development, Inc., a West Orange, NJ-based corporation, has been providing CAD instruction books, engineering education, and consulting for fifteen years. Our mission in all endeavors is to help customers reduce the time and cost of product development by innovative application of powerful technical tools and techniques. CPD provides both general instruction texts for major CAD packages and customized printed matter. Products are sold worldwide both directly and through an extensive selection of dealers. CPD also offers on-demand publishing/fulfillment and short run printing services.

About Walter Silva

Walter, President of CPD, Inc., is a veteran Mechanical Engineer with forty years of industry experience in plastic part design, molds and fixtures, and machinery development. Mr. Silva is the author of the well-known series of Doctor Walt’s™ books that cover CAD software, rapid prototyping, and technical desktop publishing. He is also the co-author of eleven multimedia training CDRoms.