![[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
Christmas vacation
Our vacation opening hours will be Monday-Thursday, 09:00-17:00; Friday 09:15-17:00; closed all day at weekends. That pattern applies from Saturday 1 December 2018 to Monday 14 January 2019 inclusive.
The holiday break will be from Saturday 22 December 2018 to Tuesday 1 January 2019 inclusive. In other words, we shut 17:00 on Friday 21 December 2018 and re-open 09:00 on Wednesday 2 January 2019.
We shall close for lunch in the week 17-21 December 2018.
We shall close all day on Friday 11 January 2019.
We might, during the vacation, need to close for days, half-days, and lunch hours. We’ll give due notice if that has to be so.
Here’s the above information sorted into a timeline.
1 – 14 December
Monday to Thursday – 9am to 5pm
Friday – 9:15am to 5pm
15-21 December
Monday to Thursday – 9am to 5pm
Friday – 9:15am to 5pm
Lunch time closure – 1pm to 2pm
Saturday & Sunday – CLOSED
22 December 2018 – 1 January 2019 CLOSED
2-10 January
Monday to Thursday – 9am to 5pm
Friday – 9:15am to 5pm
Saturday & Sunday – CLOSED
8-14 January
Monday to Thursday – 9am to 5pm
Friday – 9:15am to 5pm
Saturday & Sunday – CLOSED
15 January onwards
Monday to Thursday – 8:45am to 5:15pm
Friday – 9:15am to 5:15pm
Saturday – 11am to 4pm
Sunday – CLOSED
Vacation loans started on Monday 26 November. For loan entitlements, see http://bit.ly/hJsMoY . You won’t be able to recall books online during that time; ask library staff and books can be recalled for you, though you may need to wait a bit if the borrower’s away from Cambridge.
On Tuesday 15 January, term-time borrowing rules come back into force, and books borrowed for the vacation are due for return on Friday 18 January.
