Learn production-tested best practices from our Enterprise Support engineers and the Unity R&D Content team.
Note that the following links (below) lead to guides on the Unity Learn Website.
A guide to AssetBundles and Resources
Assets, objects and serialization
The Resources folder
AssetBundle usage patterns
A guide to optimizing Unity UI
Fundamentals of Unity UI
Unity UI profiling tools
Fill-rate, canvases and input
Optimizing UI controls
Other UI optimization techniques and tips
Is something described here not working as you expect it to? It might be a Known Issue. Please check with the Issue Tracker at issuetracker.unity3d.com.