Glass is used for some table tops, and doors of cabinets and bookcases. It resists most chemicals and stains. It can be permanently scratched, therefore it is suggested not to move rough objects across it, and do not use abrasives on it.
Clean with mild alkaline solution, such as 2 tablespoons ammonia to 1 liter water and polish dry with paper towels. A commercial glass cleaner may be used. Be very careful that no glass cleaner should get on the wood surrounding the glass as it can damage the wood finish.