Founded as the Chemical Rubber Company, CRC originally manufactured and distributed laboratory supplies for chemists. It first distributed its Handbook of Chemistry and Physics free as a bonus incentive to customers who purchased a rubber apron, one of the company’s signature items. In 1913, the first edition of the “Rubber Handbook” had 116 pages. The electron had been known for only 17 years and the Bohr theory of the hydrogen atom was still in press. Eighty-four editions later, the CRC Handbook of Chemistry and Physics remains the definitive reference for chemists, physicists, and engineers throughout the world. Ninety years later, CRC Press is a preeminent publisher in life science, medi