HVACR Business asked Dave Musial, CEO of Four Seasons Heating and Air Conditioning, Chicago, to submit his recommendations for Management Resource Shelf. Four Seasons, which serves more than 75,000 customers annually, is recipient of a prestigious customer service award by a leading consumer review website, an A+ rating from the new Better Business Bureau's grading system, and the Dave LENNOX Award. In this issue, Musial writes about www.serviceroundtable.com. Next, he will write about two of his favorite management books. View Article.