![[The Canonical
Stack]](http://haddon.archanth.cam.ac.uk/wp-content/themes/cam/images/readercover.jpg "The Canonical Stack")
The Canonical Stack—book sculpture by Christopher Evans and Issam Kourbaj (photograph, David Webb). The sculpture was an arrangement of books, mainly from the Haddon Library, and was photographed in situ there on 8 March 2008. All the books are now back in their normal use.
The Haddon Library serves the staff, research students and undergraduates of the University, together with members of the Cambridge Antiquarian Society. Staff and students of other Universities are welcome to read here, on production of evidence of academic bona fides. Other visitors should enquire in advance.
You can donate to the Haddon Library online. Or, if you prefer, read the library's appeal and then donate online. Start by clicking the 'Give Online' button above. Thanks!
- News and Events
Friday afternoon closure — update
The Haddon will close at 16:00 on Friday 22 September.
Apologies for the inconvenience.
LONG VACATIONVacation borrowing started Friday 16 June, and will let you keep the borrowed items till Friday 6 October.
The Haddon’s opening hours will be:
Monday to Thursday, 09:00-13:00, 14:00-17:00
Friday, 09:15-13:00, 14:00-17:00
Closed at weekends
The library is closed on Bank Holiday Monday, 29 August, and at 16:00 on Friday 22 September.
