In an effort to help you find the kinds of wallpapers you like, I’ve put together 19 collections of wallpapers that cover 15 different genres. This week’s genre is 3D and abstract wallpapers with a second part due this wednesday. I hope you like them. If you know of any other wallpapers that fit in this genre, please let me know. Looking for a different genre? Head here to see desktop wallpaper collections organized by genre.