Hello. Is there a book or other resource that teaches proper tuning approach for offroad electric R/C vehicles?

I am returning to the hobby after a 5 year hiatus. A big portion of the enjoyment I get from this hobby is working on and maintaining my vehicles. I really want to dive deeper into proper setup approaches with my vehicles.

For example: when looking to stiffen the front suspension, at what point do you change springs versus oil in the shocks or pistons? Why? When would you change the shock mounting positions? Why?

These are just a couple of examples of questions I have. Thank you all in advance for any guidance.