If anyone is contemplating bringing a tool & cutter grinder into their life, learning to use it can be a seriously daunting experience. I was very fortunately sent a book by some kind soul long forgotten, and this book was very helpful to me. On a whim I called and found it is still in print, and thus still available. The book is titled "Instruction Manual -- A Handbook For Use With K.O. Lee Universal Grinders And Tool And Cutter Grinders" and it is published by the K.O. Lee company of Aberdeen, South Dakota.
If you are dead serious about learning, it may be worth your while to order this book new, although at $75US it isn't cheap. Mine was printed in 1979 and says "Price $6.00" so it has gotten a bit more expensive. On the other hand, K.O. Lee are still in business and pay qualified people to answer the phones for people like us, so you get what you pay for. When I consider that I paid $140 tuition to take a night shop class from a guy at Lake Washington Voc-Tech just to learn a few basic techniques on a T&C grinder, I'd consider $75 reasonable. But most of you will be smart enough to look on bookfinder.com or another of the fine used book search engines.
This book has dozens of expertly-photographed setups, and many useful tables. It isn't a primer, though -- rather, it's a reference book for grinder operators. I don't know of a primer, sadly.
Grant Erwin Kirkland, Washington getting ready to say goodbye to my T&C grinder (sniff, sniff)