The desk lamp is usually placed on the left side of the desk, because the shadow on the right side will affect the light. You can put the books you don't usually read in other places and move the bookshelves to other places.
When placing desk lamps, the distance between them should be appropriate, not too far or too close. The desk can be placed on the windowsill, which can avoid direct sunlight and ensure light. Pay attention to eye hygiene when writing.