Webcourse selection & registration. Enrolling in graduate and professional school courses for credit. Graduate school of arts and. Webview course listings and create planning schedule worksheets in yale course search (ycs). Webonline course information (oci) and yale blue blook (ybb) have been replaced by a new course search tool called yale course search. Update any bookmarks or links to. Webfor questions about online course selection, preregistration, and registration, email registrar@yale. edu. Webselecting four or five courses from among yale’s many offerings for your first term can be at once exhilarating…