I'm not sure what SPIE Digital Library does, other than hand out free graph paper notebooks, but that's enough for me.
Sometimes when I'm doodling, my brain can't think of all the zillions of possible patterns I could use, so I'm using this handy dandy little SPIE notebook to create a reference library of patterns.
And my first two pages are filled now.
Some are good, some are lame, but it's interesting to just draw samples that don't have to fit into a particular space.
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