A well illuminated room has a more complex lighting structure than just a single overhead fixture or table lamp. Rooms should be designed with layers of light, creating a warm and welcoming space.
Start by picking what’s important in a space, work from that one layer, and build on it. For example, in a living room or den, light pictures on the wall creating the accent layer. Create general or ambient lighting with a chandelier, pendants or even recessed can lighting. Table and floor lamps are great layers of task lighting for enjoying a great book or crossword puzzle.
Whenever possible, I highly advise using lighting controls such as dimmers that will allow for fine tuning the layers of lighting in your home.