So if one were to say have a pretty cool game and tutorial series on how to make it. How would they go about making money off of all the hard work they put in? I was thinking post it on Steam, as a buy the game for $1.99 get the tutorial for free?
Asking for a friend.
That or trying to be on some learning platforms like Zenva or CodeMentor or Pluralsight
$19.95. That is how to make money! 
(just to be clear - I have no issue with him charging a fee for the book. I might actually buy it.)
eh, that book is prolly not the target audience I am looking for. So to read it might be beneficial but prolly not gonna be able to use much of it.
And whoa $19+, good lord I wonder how many sales of the book there are. I was thinking more like platforms to launch it on. But I guess could do it like this guy and have a page dedicated to it.
I suggested this book for two main reasons :
Here are a few links that I just found:
Amazon:
https://developer.amazon.com/webapps
https://developer.amazon.com/docs/in-app-purchasing/iap-api-for-webapps-overview.html
Facebook:
https://developers.facebook.com/docs/games/instant-games/getting-started/quickstart
https://developers.facebook.com/docs/games/instant-games/guides/ads-monetization
https://developers.facebook.com/docs/games/instant-games/guides/in-app-purchases
PhoneGap / Cordova:
https://phonegap.com/
https://phonegap.com/blog/2016/08/09/appfeel-guest-post/
Universal Windows Platform:
Adsense:
https://support.google.com/adsense/answer/7170212?hl=en
Kongregate:
https://blog.kongregate.com/tag/monetization/
Xsoloa (agar.io uses this)
https://xsolla.com/
Xsolla Documentation - Store
I’m a newbie with all this, so I would love someone else to chime in who has some real experience.