You can download (which I believe you are referring to) for free as a PDF from the official Raspberry Pi website . The MagPi is the official Raspberry Pi magazine, and they make all their back issues available for free digital download to support the community. How to Download The MagPi #122
: Head over to the The MagPi Issue 122 page on the official MagPi Magazine site. Download Mag Pi1222 pdf
: Click the "Download Free PDF" button located on that page to open or save the file directly. You can download (which I believe you are