Saws can bring a lot of enjoyment in this hobby.
Knowing about them can bring even more.
The Norse Wood Smith site has a lot of information on saws, but it takes a little bit of noodling around to find it all. Here is a link that does contain an explanation of saw tooth geometry.
http://norsewoodsmith.com/content/sl...nts-sharpening
Vintagesaws.com has a lot of information in their library about saws and a whole section on how to sharpen your own saws. That is where I first learned how to get started.
jim