You can't go wrong with any books from CANAV Books. "Sixty Years" covers the first 60 years of the RCAF and "Canadair: The First 50 Years" will take care of your other question.
As you'll see from the CANAV Books website (
www.canavbooks.com), there are many, many books on more specialized Canadian aviation topics, includings unit histories, markings, serials, autobiographies, battles, wars, aircraft types, etc, etc, but the two mentioned above will give you a great start.
Aviation World is a great source of books and magazines and they have strong coverage of Canadian subjects (
www.aviationworld.net).
Several Canadian aviation museums have good bookshops, too, but I'm not sure which ones do mail order.
Having recommended some things to look for, here's one to watch out for: "History of the Royal Canadian Air Force" by Christopher Shores has photos ranging from good to poor and the text has more errors than truths, so don't waste any time or money on it if you find a copy. It's wretched.