Often you or other complain that there is not enough documentation, tutorials…. (even if we have a mooc worth 155 K euros http://mooc.pharo.org, several great books http://book.pharo.org), but yes we should update them.
Now I started to work on a new book on Spec 20 with Cyril Ferlicot and I decided that I will not write it for free because it will take me at least 6 months.
So I decided that if this community wants more books and documentation, it should prove its will :)
I created a fundraising campaign to check if people can align their wishes and their means.