Hearst Business Communications has released the 43rd edition of the eem catalog, eem 2001. The edition is arranged in four volumes, each composed of related product sections. Each volume contains its own product index and directory, as well as its own manufacturers and sales directory. Volume A focuses on electronic components; B covers electromechanical and electro-optical components; C covers interconnections, packaging and hardware; and D features power sources, instrumentation, computer products, and equipment.