A 2004 web document by Ralph Griswold on designing nonlinear grids (grids with varying cell widths and heights) from fractal sequences. It explains the binary Morse-Thue sequence and its base-3, base-4 and base-6 generalizations, plus the rabbit sequence, and shows how each is incremented to give widths and heights. The remaining pages are examples of grids made by combining different horizontal and vertical sequences (M2 x M2, M2 x R, R x R, etc.), followed by references to related Griswold documents and the OEIS.