What are the different categories of interior home decorating (in terms of furniture/fixtures)?

Question

I know there's contemporary, traditional, modern, feng shui. Anything else?

Answer 1

Just one observation: Feng Shui is not a category of interior home decorating.

A theme is a consistent idea used throughout a room to create a feeling of completeness. These themes often follow period styles. Examples of this are Louis XV, Victorian, Minimalist, Georgian, Gothic, or Art Deco. The evolution of interior decoration themes has now grown to include themes not necessarily consistent with a specific period style allowing the mixing of pieces from different periods. Each element should contribute to form or function or both and maintain a consistent standard of quality and combine to create the desired design.