IF YOU LOOK closely, you will often see politicians and officials on TV or in real life standing behind lecterns flanked by what appear to be little glass shields, which are sometimes mistaken for special bulletproof security devices. But these glass plates are actually teleprompters (also known as autocues), which help speakers give speeches without having to look down at a script.

Teleprompters are one-way mirrors, which are supposed to be almost invisible to the audience but provide a large-type scrolling text visible only to the person behind the lectern. Their functional beauty lies in the fact that they put the speaker perpetually in the GO ZONE.

Obviously, teleprompters do not make sense in smaller rooms with ...

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