This includes production sketches, official licensing sheets, and high quality scans of magazine art used for advertisements. (cogconnected.com)
The day after a book hit the stands, high quality scans of the pages were available on line for download. (loudpoet.com)
I've added high quality scans of from the May 2018 issue of Empire UK in addition to the March 16th, 2018 issue of Entertainment Weekly, all centered around the upcoming Avengers: Infinity War. (sebastian-stan.com)