Caffenol, in all its variants, has no doubt became a venerable contemporary film developer. Not only because it uses only widely available, non-toxic components, but also because it gives good results with many BW films. So it's no surprise so many analog photographers adopted caffenol (in one or a few variants) as their developer of choice. By the end of last year, 8 photographers issued a fantastic (albeit only online) Caffenol Cookbook Bible. It's not only a collection of developer recipes, there's also a brief portfolio from each of those photographers. Among them, there's also Martina Woll, who has been featured on TAP some months ago. Enjoy the Cookbook!