<p>Also can’t resist chiming in on an old thread - most arch. schools require the portfolio, and for most it’s one of the most important pieces (if not the most important). It shows your ability to look, to create, and to think visually and spatially.
Photos are good for spatial composition, drawings and paintings to show your “hand” (technical skill). The overall format is also important - it shows graphic composition skill and rigor and attention to detail (critical in architecture).
Most schools have old portfolios available - definitely ask to see them for examples. Also check out Harold Linton’s “Portfolio Design” - textbook in many arch. programs</p>