Bonsai Development vs. Refinement talk to CKBS

I had a good time this morning presenting to the Central Kentucky Bonsai Society about Development vs. Refinement in bonsai. For those not familiar, the general idea is that when a tree is young, has a thin trunk or branches, or is otherwise not the size you want, it's in development. When it's generally at the size you want, then you start some of the "finishing" steps toward refinement (in reality a bonsai is never finished). I wanted to share my thorough handout here as well as a few pictures my friend Chelsea took. I'll likely create some supplementary videos over on youtube as well.  

​Download the handout here.