Here are a few examples of some Canada Cinderella stamps you can find described in the Field Guide.
WWI and WWII propaganda labels encouraged the public to keep up morale, and helped fund the war efforts. A whole chapter on propaganda labels, including economic, military, cultural, religious and political propaganda, can be found in the Guide.
S. Allan Taylor began his career as a stamp collector and dealer in Montreal in the 1860's. He was notorious for creating and selling bogus local post stamps to collectors and other dealers who were easily hoodwinked at the time. The Guide contains a whole chapter on Taylor's Canadian creations, such as this Bell's Dispatch stamp, and other fantasy labels.
This was the first Canadian stamp issued to commemorate a philatelic exhibition held in Montreal in 1925. There's a full chapter devoted to these types of philatelic exhibition seals in the Guide.
Prince Edward Island, the smallest of Canada's provinces, used to be one of its most isolated as winter ice made the trip to the mainland nearly impossible. Plans to build a tunnel connecting the island to New Brunswick were aroused early in the 20th century. But the plans got no further than producing an interesting propaganda stamp!
Gaston Fontanille, a.k.a. Delandre, produced thousands of stamps with military themes, mainly depicting the French army. However, when he produced and sold Red Cross stamps and failed to share the proceeds with the Red Cross, it landed him in jail! His military vignettes are very popular with collectors.
In 1918, the United Empire Loyalists set up a Canadian Aviation Fund to help support a WWI pilot training school in Toronto. This stamp was used in the fundraising campaign. A wide variety of charity and fundraising stamps are described in the Guide.
Events such as anniversaries, fairs, or exhibitions were often celebrated by issuing stamps, such as this Vancouver Golden Jubilee stamp from 1936. A chapter on Dated Event stamps in the Guide highlights these wonderful miniaturized advertising posters.
Private companies embraced the opportunity to advertise themselves or their products through poster stamps. These were usually rather large and brightly colored, to capture attention. During times of war these labels sometimes had patriotic slogans. The Guide has a chapter devoted to Corporate Advertising stamps, such as this one from a Montreal paint and chemical manufacturer.