Reader Jonathan Hoskin has taken up the task of compiling Special Editions for us. He’s updated Vol.3 and added Volumes 4-6 to the collection.
All Inkscape Special Editions can be found on this page: http://fullcirclemagazine.org/inkscape-special-editions/
Don’t forget, you can use the site search function to find other Special Editions.
Inkscape Special Editions Vol.1-6
Source: Full Circle Magazine