A time-consuming thing it can be to find the right images for a project, whether that project is a book cover, poster, banner, or a social media header. This list will expand with time, as I locate more of these websites, so come back often. Please note that some of these websites may ask you to create an account, and it is probably a good thing that you do. Read through their Licensing Terms & Conditions to be sure that you have the right to use, manipulate, and/or transform any image prior to downloading and using them. Do the CYA and stay legal – you’ll save yourself a world of stress if you do. Best of luck to you in your projects.