Archive note: this announcement was originally published by the Parrot project on July 21, 2017 and is kept here for reference. parrotlinux.org is an independent site, not the project's official website. For current information see the latest release notes.
Hello Parrots, we have put together a little collection of open source books about software development, IT security and computer engineering
they are hosted on all our mirror servers around the world as part of the parrot archive
https://archive.parrotsec.org/parrot/misc/openbooks/
Another important part of our digital archive is a custom version of the RACHEL archive, hosted in our mirror in Palermo, it contains an offline copy of open documents and resources selected to represent and preserve the most useful topics of the human knowledge
http://mirror.parrotsec.org/RACHEL/