Founder of McGraw-Hill Publishing Co. McGraw was a pioneer in the creation of publications for market niches. While selling space as a college student, McGraw saw a need for specialized publications to serve the machinery, equipment, and systems fields, which were undergoing spectacular growth at the time. In 1885, McGraw borrowed money to acquire an electrical industry publication. His prospering McGraw Publishing Co. then acquired Hill Publishing to create McGraw-Hill. When McGraw retired in 1936 as chairman, McGraw-Hill had 24 national trade publications, plus Business Week and McGraw-Hill Book Co., the largest technical book company. Known for high editorial and advertising standards, McGraw became the first to publish circulation figures and was known as the dean of industrial publishing.