cassidoodledooIt is basically black and white illustrations that are meant to be as ambiguous than the words. https://boardgamegeek.com/image/3182502/codenames-pictures
I haven't had a chance to play that version yet, but several of my friends have and they all like it much better, though I think they are more visual people and I am.
cassidoodledooWe own both. Honestly, I think I prefer the original, but I really love word games, so I may not be the best judge. Pictures is still tons of fun though.