Hey Dutch in so much as flyfishing is about the art of angling as it is about catching fish I would suggest that you also take the time to read the various books written by Roderick Haig- Brown.
Brown was the premier writer of angling with fly for steelhead in the west and is held in highest regard by many old time steelhead fyfishers.
If your pressed for time your in to big of a hurry but start with Fishermans Summer, pay special attention to his teaching of the meaning of sport re. fishing = tradition, ethics,and restraint.
How to books are pretty dull compared to reading Brown hope you enjoy and I hope at some time you understand fully what the expression Tight Lines is for, good luck.