Prof. Agustín Rayo
The objective of the graduate-level course is to give people a sense of what "accounting for vagueness" is all about, why it's hard, and why it's important. This will involve surveying some prominent accounts of vagueness.
OCW has published multiple versions of this subject.
Rayo, Agustín. 24.729 Topics in Philosophy of Language: Vagueness, Fall 2005. (MIT OpenCourseWare: Massachusetts Institute of Technology), http://ocw.mit.edu/courses/linguistics-and-philosophy/24-729-topics-in-philosophy-of-language-vagueness-fall-2005 (Accessed). License: Creative Commons BY-NC-SA