Found in 2 comments on Hacker News
leddt · 2014-10-20
· Original
thread
Right here:
Scope & Closures: http://shop.oreilly.com/product/0636920026327.do
this & Object Prototypes: http://shop.oreilly.com/product/0636920033738.do
Types & Grammar: http://shop.oreilly.com/product/0636920033745.do
Async & Performance: http://shop.oreilly.com/product/0636920033752.do
These are what the covers of all the books in the series look like:
http://shop.oreilly.com/product/0636920026327.do
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side note: my kickstarter for the books, 2 years ago, playfully used the bald head image to catch people's attention (never the intended branding). I soon afer got a friendly lawyer takedown notice from the folks who own the game. We worked it out, and the new branding was born. :)