Made for Math 372: Combinatorics at Reed College, fall 2026. Elements are orbits of Sn on the topologies on [n] — the families of subsets closed under unions and intersections, i.e. certain points of B2n — ordered by inclusion (coarser below finer), in the manner of the quotients of Chapter 5 of Stanley's Algebraic Combinatorics; the order is not graded, and rows are the number of open sets. Finite spaces are the same thing as preorders (Alexandrov), which the second glyph shows. Part of e-infinity.space/viz.