John tells us that the book is written to first century Christians.
Originally posted by Ranger
I wanted to comment on your discussion of the Revelation's genre. The book itself claims to be a letter, a prophecy and a revelation. That means that the book falls under three major first century genres; epistolary, prophetic and apocalyptic. In regards to symbol this is crucial because it means that the symbols were meant to be understood. Typical apocalyptic literature was pseudonymous and intended to not be interpreted, but this is prophetic apocalypse written as a letter meaning to be read out loud to a congregation. At various times John tells the reader to understand or discern the symbols as well.