LEED Daylight Credits

Hello! I am basic-intermediate user on Rhino and Grasshopper and I didnt perform Daylight anaylsis before.

I want to learn to do Daylight simulation in order to use it on LEED Daylight Credits. I found some tutorials,still I am trying to understand to perform it properly. I would like to ask some information, advices, guides etc. before going deeper on my search.