Start with this article by Don Wirth, Crappie By Degrees. If the cut and paste link doesn’t work, do a search for the article, very informative and can be related to most US lakes.

https://www.crappie.com/crappie/sout...ppie-movement/

On the Mississippi State Sticky Board:

https://www.crappie.com/crappie/miss...erature-guide/