Reception is the act of receiving, or getting something, or the way it is received. If your book receives a positive reception, it means people receive it well. In other words, they like it.
A reception can also be a party, such as a wedding reception. A reception area is an office waiting room where visitors are greeted and the receptionist sits. Reception can also refer to the quality of a broadcast signal, as received by a TV or radio. Good reception means a clear, strong signal, and poor reception means you might want to shake or kick the TV screen. A reception is also the act of catching the ball in American football.