<ul data-eligibleForWebStory="false">U.S. publisher McGraw Hill plans to go public through an IPO at a valuation of $4.2 billion.McGraw Hill, based in Columbus, Ohio, is known for producing school textbooks and has a global sales team of about 1,500 people.The company aims to raise up to $537 million by issuing 24.39 million shares priced between $19 and $22 apiece.Goldman Sachs is the lead underwriter for the IPO, and the company intends to trade on the NYSE under the ticker symbol “MH.”