Part 1 of the Mesh Modeling in SOLIDWORKS series. This video focuses on working with "graphics bodies" (mesh files, such as stl, obj, 3MF, ply, etc... imported directly into SOLIDWORKS).
Note Part 2 can be found here:    • Mesh Modeling in SOLIDWORKS Part 2  

Topics covered include:
Overview of mesh geometry
Uses for mesh geometry in SOLIDWORKS - Visual Reference
Uses for mesh geometry in SOLIDWORKS - Geometric Reference
Main Body Types in SOLIDWORKS
Graphics body clean up tools
Decimation
Adding Sketch geometry to a graphics body
Surface from mesh
Body Compare