Eleanor Burns Day and Night pattern. It is made with strip sets (of course) and it requires a special tool to cut triangles from the strip sets. I bought the book, because it comes with the tool. I used the "three strips, two colors" option to make the crib sized quilt.
She suggests using fabrics with good contrast, so I went with complimentary colors: yellow and purple. The design makes me think of a harlequin, even though it is a little different. I'm really happy with how it turned out. I'm not sure what I'm going to name it, or what I'm going to do with it once it is finished. I've bought fabric to make a sofa-sized quilt using the same pattern, but that one will be in shades of red to match my living room. I made this crib-sized one as a trial run before I moved onto the larger one made with more expensive quilt shop fabric.