Complex sentence: Joe Brooks was a mentor and friend of one of the top fly fishermen alive today, Lefty Kreh, credits Brooks for introducing him to fly fishing, encouraging him to start writing about the sport and getting him one of his first jobs in the fishing industry.
Split into simpler sentences: Joe Brooks was a mentor and friend of one of the top fly fishermen alive today, Lefty Kreh. Kreh credits Brooks for introducing him to fly fishing, encouraging him to start writing about the sport and getting him one of his first jobs in the fishing industry.