Don Casey's first book, "This Old Boat", was published in 1991, 33 years ago! It was my bible for getting an old sailboat ready for cruising. Dlochner is right in that a lot has changed since then, but it is still a good read with many applicable fixes for modern boats.Casey's book was published 19 years, a lot has changed in that time.
Much of what you will find in the "complete" books, Casey's, Calder's, and others deal with systems that won't exist on an O'Day 22, systems like elaborate electronics, plumbing, engine and transmission, etc.
You might do better with a collection of books on specific topics, starting with a shop manual for the outboard, then a book on glasswork (Take a look at the West System manual, its free or very cheap), and so on.
For $8, it is worth almost every penny. Just don't treat the book as gospel. He does have some creative ideas for creature comforts.I was able to find a used copy. A new copy is over $50. I got mine for $8.
That's really interesting, @dlochner . I didn't know that myth came from Casey. It would be interesting to take a read through it and compile a list of things that need revisiting.If you can find a used copy, Casey's book might provide some benefit, but it is probably not worth the cost of a new copy. Casey also spread a lot of mythology. My favorite myth is the bedding compound myth. He recommends retightening screws and bolts after a day or two. The problem, especially with screws, is the seal between the bedding compound and the screw is broken making the screw more prone to leaking.