The Wren Library is generally open to the general public between 12 noon and 2.00 pm Monday to Friday and on Saturday mornings in Full Term from 10.30 am to 12.30 pm. Numbers are restricted to 15 at a time. Photography is not permitted. Last admission 1.50 pm Monday to Friday and at 12.20 pm on Saturday mornings in Full Term.
There are six exhibition cases in the Wren with a selection from the Library's collections on display. Almost always on view are the oldest book in the Library (the Epistles of St Paul, produced in the 8th century, Trinity MS B.10.5), Newton's own copy of the first edition of Principia containing his annotations for the second edition (NQ.16.200) and A.A. Milne's manuscript of Winnie-the-Pooh (Trinity Add.MS.c.200).
In addition to its standing collections, the Wren Library also occasionally mounts special exhibitions on a range of subjects.
Access to the Wren Library is free, although there is normally a charge for entry to the rest of the College. If you want to visit the Wren only you should enter from Queen's Road or Garret Hostel Lane.