Having taken a year off to look after his two young children, German graphic designer Tilman Zitzmann decided to keep his creative skills sharp by creating a different geometric pattern everyday and posting it on his blog Geometry Daily. However interesting (or not) this sounds, now in it's second year the project has made for incredibly addictive and inspiring following. We've seen the I'm-doing-something-amazeballs-every-day-for-a-year shtick before, but Zitzmann's blog is a stand out if for no other reason than the pure simplicity of his idea and works. A selection of Tilman's chic shapes are available as prints from Society 6 (€16). Here are a four of my favourites.