Lighting must be carefully selected based on activity. I call it activity lighting. This too also plays a key role in how you want the client's home to feel for daily tasks.

Daily entertainment rooms / bedrooms: generally includes majority of natural lighting, table or floor lamps, and ceiling lights. Requiring very little to no general or task lighting just personal preference.

Reading areas: requires a great deal of task lighting for the activity of reading which can come from lamps. Also, general light is there too from ceiling lights or natural lighting during the day.

Great Take Away! Natural Light Is KEY!