The Book of Shaders website @bookofshaders github
a gentle step-by-step guide through the abstract and complex universe of Fragment Shaders
by: Patricio Gonzalez Vivo website @patriciogv github and Jen Lowe @jenlowe website
William Stallwood 30 days of shade @willstall
A SIMPLE MODEL OF THE BELOUSOV-ZHABOTINSKY REACTION FROM FIRST PRINCIPLES by Alasdair Turner