How do you approach learning about a new industry?

"I know that learning a new industry is more than just learning how to do my specific job. For that reason, I plan to approach learning about warehousing and logistics from a couple different perspectives. When I'm working on my job, I can learn by reviewing older project files. Supplier brochures, websites, and trade magazines can help me understand the equipment we put in our systems. When I'm in the field, I can ask the customer questions to learn exactly how they use our equipment. Do you have any recommendations for .general reading that can help me get a feel for the field?"