Shoes
Navigating to the tutorials section, I discovered to my joy that _why was clearly involved in this in some way. The online book[1] is written by them in their inimitable style.<p>See also _why's other classic Ruby-related book, the Poignant Guide to Ruby[2].<p>[1]: <a href="http://evc-cit.info/cit020/nks.pdf" rel="nofollow">http://evc-cit.info/cit020/nks.pdf</a>
[2]: <a href="https://poignant.guide/" rel="nofollow">https://poignant.guide/</a>