Reading about business and your industry can help set you apart from others in your field.
John Cafferty was a former Marine and a crusty sort who only knew two ways of doing things. His way (the right way) and the wrong way, which was any other way but his.
And, he was consistently right. John had gained enormous respect in the industry for his command of highly specialized commercial heating and process boilers. Having reached a time in life when there was no successor for his business to go on, he sold it and joined our company at the encouragement of my dad. He trained me and a lot of others at my company on how to work on this type of sophisticated equipment.