Superman/Wonder Woman books perfect for Christmas as gifts or just reading over the holidays.
Kingdom Come can be gotten in graphic novel form from your book stores/ Amazon.com or right now there is a Superman sale on comixology where the issues are 99 cents each! Yeah, really! There are many pre reboot Superman comics to be bought cheap like Red Son and Birthright etc etc
JLA A League of One can be bought at books stores/Amazon.
Superman Peace of Earth and Wonder Woman Spirit of Truth can be gotten off Amazon.
And then the famous Justice League #12 issue. If you haven’t bought it yet it is available to download digitally on comixology, nook, etc. Get it and start reading the series from #12 onwards! It’s superwonderful!