It's a shame that he released it under a no-deriv's CC license. The actual cost of textbooks is small compared to the penalty we all pay from not having our te

It's a shame that he released it under a no-deriv's CC license. The actual cost of textbooks is small compared to the penalty we all pay from not having our textbooks iteratively refined. http://blog.jessriedel.com/all-posts/2015/04/16/beyond-papers-gitwikxiv/ http://blog.jessriedel.com/all-posts/2015/04/16/beyond-paper...