A surface modeling video about continuity and using control point splines to define transitions to flat surfaces.
Some other useful resources:
Surface modeling under the hood:
https://youtu.be/AOZVIrd7wj4
Complex Topology and Class-A Surface Modeling:
https://www.autodesk.com/autodesk-university/class/Complex-Topology-and-Class-Surface-Modeling-Fusion-360-2017#video
The Beauty of Bezier Curves (not a Fusion 360 video, but interesting):
https://youtu.be/aVwxzDHniEw
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Thanks for watching ~wave~, see you in like... another year? Hopefully less.