Pharo by Example 90' repository is now at https://github.com/SquareBracketAssociates/NewPharoByExample9/
Why? Because the history looks corrupted and we could not push anymore, even after clean clone. I do not have the expertise to understand why and how to fix this. So to be able to work and test we created a (temporary) new repository
This one should be read only.
A new version of Pharo by example for Pharo. You can find the automatic build at https://github.com/SquareBracketAssociates/PharoByExample9/releases/download/latest/PBE9-wip.pdf
Look here for more Books and Booklets. The pdf of the current book should be available on the release tab of this page.