Double-check your message
When posting a sign, writing an email, launching a marketing campaign, it all comes down to what people see and interpret from your message. You have to factor in every potential way in which someone might view your message.
3-D Characters in a 2-D World
The thing about writing a novel is this: If your characters aren't real, then your book will fail.
Sounds paradoxical, right? I mean, fictional characters can never be "real."