We now have a new Solar Observing Guide https://www.aavso.org/solar-observing-guide
Please check it out, especially meant for beginers interested how we observe the sun. Frank Dempsey, long time AAVSO solar observer has done a nice job putting this one together. Thanks also go to Dr. Ralph Chou, Tom Flemming, Kristine Larsen and Sara Beck for help and editing.
I'm looking and sketching the sun in WL and Ha since a long time. My first sketch was done in the ORB (SIDC) Observatory in the year ... 1970
As a french speaking guy, I want to point out the superb work made by Bernard Candela in nov 2017 for the percfect and useful french translation of "The AAVSO Solar Observing Guide" Version 1.1
Bravo for this work and yours !