You may know Edholm Ullenius from such fabric patterns as all the bright ones you almost got at Ikea last year and the fallopian tube print they made for some ad agency's fertility medicine client.
For starters, there's the alphabet in Swedish, all 28 letters, more or less. Those A and O things are all distinct letters. Also, Edholm & Ullenius appear to be unconvinced by the Swedish Academy's recent  decision to follow international practice by splitting "W" off from "V" as its own letter. Also, "Q" is not used in any Swedish words, and yet there it is.
Don't you love how Wikipedia can make anyone sound like an instant expert? Now if you'll excuse me, I'm going to create a Wikipedia article for Swedish abacuses that use base-4 and base-6 as well as base-5.