PC21, 11-book set: July 2020 issue and January to September 2021 issues, and December 2021 issue. *No supplements included. Features free software and Windows. - Title: Nikkei PC21 - Featured Content: Free software, Windows 10, How to use LINE, Windows 11, Backup, DIY PC, etc. Thank you for viewing. I have stored these at home. There are scratches, stains, and folds. Many pages have been highlighted with a marker. I think there is no problem reading them. There might be some tears. No supplements included. I haven't checked them in detail, so I may have missed something. If you have any concerns, please comment before purchasing. Shipping will be via either Rakuraku Mercari or Yu-Yu Mercari. No price reduction. Free software, LINE, smartphone apps, printer, tools, wireless earphones, smartphone, windows10, iPad, Google Photos, PC trouble, Wi-Fi, Chromebook, security, Excel, PDF, account, password, edge, Power Automate