Carpet beetles are small (1/4 inch long), brown, and have a pattern of black, white, and yellow on their backs. They are most easily identified by their small size and their patterned backs.
The best way to get rid of carpet beetles is to eliminate their food sources by thoroughly cleaning your home. You can also use commercial fly traps or bait. If you have a severe infestation, you may need to call a professional exterminator.