What better promo for an architecture firm than LEGO-style building blocks? (Well, chia card for landscape architects, but that’s a different story.) Anyhow, the building block as architecture promo does a couple things. Obviously, it conjures up the idea of construction or building, which is relevant to any architect. Perhaps slightly less obviously it evokes the idea of creativity, which is probably something that most architects want to evoke. Lastly, it conveys a sense of fun and whimsy, which is great if that’s what your firm is all about, but is probably the least universal of the three feelings.