How do I delete books I do not want?
You can hide resources by opening the program settings and scrolling to the bottom. You simply drag and drop books into that area and they will be hidden after you restart logos.
Alternatively if you want to hide a lot of resources, you can open your library and hold the ctrl button while selecting multiple resources. After you have selected all of the resources you want to hide then while still holding ctrl right-click a resource and select "hide resources" from the pop-up menu. Again you will have to restart Logos in order for it to take effect.
Welcome to the forums Phil! [:)]
For clarification: "Hiding" books is kind of like archiving. You maintain the license to the resource, but it won't show up in your library, searches, etc. Also, you should know that this preference syncs across devices. You cant have a book hidden on one computer and shown in another (without turning internet off on one computer).
To compliment what has already been said in this thread, you may find this wiki page helpful https://wiki.logos.com/Hiding_Books