Parts 3 and 4 of the video series “The Essential Canjo” by C. B. Gitty have just been posted here on CigarBoxGuitar.com.
These videos dig into the nitty gritty of how to play the canjo: Part 3 shows you tuning and tablature reading, and then moves into playing a couple of songs (Camptown Races and When the Saints Go Marching In) from tablature available on this site. Part 4 then moves into some more advanced playing techniques that you can use to spice up your canjo playing: hammer-ons, pull-offs, vibrato, tremolo and the like.
By the time you’ve finished watching all four of these videos, you should be well on your way to mastery of the canjo!