https://www.tor.com/2020/05/01/sign...ook-of-the-way-of-kings-by-brandon-sanderson/ You have to wait until May 4th, but the book will be free for everyone as long as you sign up for TOR emails. You can sign up now and they will email you the ebook May 4th. From Brandon's Youtube Channel under the Community section posted about 10 minutes ago as of this thread creation:
Kindle, Thaddius Sedai. Have the book both in hardback and on audible though, so I shouldn't complain
Just saw that this will be extended one day due to Tor Books' servers crashing. So get it while you can, if you can