Looks good! I would suggest putting near the beginning a note to the effect of "Note: This may look very verbose now, but I am going to explain how to make these statements idiomatic and compact further down. I'm just being explicit now." Otherwise, I would worry about people being scared off by the fact that the parenthesized, non-eta-reduced version is much longer and harder to read than the Python version. 

Maybe also compare the short version to the Python version, just to wrap up the tutorial?

Cheers,

Will

On Jan 22, 2017, at 05:27, Cody Goodman <codygman.consulting@gmail.com> wrote:

Hi All, I wrote a lens json parsing tutorial here: https://github.com/codygman/concise-json-parsing-in-haskell

I'd appreciate any feedback. My approach tries to use a prior understanding of Python into understanding lens enough to do something useful. Perhaps I can include links to tutorials that cover more of the theoretical foundations as well.

Any criticism and/or ideas is welcome!

Thanks,

Cody Goodman

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