Free Microsoft eBooks

Microsoft has put a long list of free eBooks on the net. Some of them are sort of 101 basics, some of them are really interesting.
The site for it is Largest collection of FREE Microsoft eBooks ever. Cause of some reasons stated on the author's blog page there is no "download all" zip file, but there is a list of single files to download them all, using tools like powershell, wget or similar. This list can be found here.

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