Access is provided on a take 'as is' basis. The source must be acknowledged. The files are slightly disorganised.
Files frequently contain two copies of slides - the handout set and the foil set.
Old slides are sometimes tucked away at the end of a file. Files sometimes include slides containing informal notes. Some files contain links to files. The linked to files are often not provided. Lecture topic Course overview IS costs take on a life of their own . . . .