The Internet Archive https://archive.org/

https://archive.org/

You can find thousands of print image media, video and books posted for free - just sign up to keep their numbers growing. - it is a great resource.  Also looking through the images they were showing book or poster covers and they had circle dots over the top of it so you couldn't run off with the free art but you know what they also did..They had the circle dots over top of the cover of the Bible!  what the heck ???