Established in 1995 and targets repair shops that derive half or more of their revenue from the service and repair of under the hood systems. Defines trends in engine technology and specialization. Each issue features updates on legislation and products as well as technical tips and techniques on electronics cooling systems, air conditioning, emission controls, fuel systems, ignition, internal engine repair and electrical and charging systems. Departments include: Publisher's Page, Tech Tips, A/C Update, Aftermarket Update, Underhood Chronicles, Product Showcase, Literature Showcase, Classifieds and Editor's Page.

Edited for the homeowner who takes an active interest in home improvement and remodeling. Includes topics related to home improvement, yard and garden care, maintenance and repair, remodeling, information on woodworking, auto maintenance, energy efficiency and decorating.

Edited for members of all industries connected to the manufacturing and use of air conditioning, heating and refrigeration equipment. Editorial materials highlight current trends in equipment development, design, marketing, installation and management.

Established in 1985 and provides practical, application-oriented information for facility engineers, consulting engineers and mechanical contractors who design, specify, install, maintain and purchase non-residential HVACR equipment and components. Provides real-world solutions to everyday problems. Covers the commercial, industrial and institutional HVACR markets with a non-theoretical, application-oriented approach. Examines the latest changes in the design, specification, maintenance and management of non-residential HVACR systems and componentss

Established in 2002 and serves NATEF-certified automotive training programs at educational institutions. Editorial includes information on the latest in machine shop service updates, in-depth coverage of specific parts and underhood systems, diagnostic and servicing techniques, critiques of new tools, equipment and technologies, engine design and repair and additional coverage of the detailed aspects of the automobile industry including the import service market.