St Bride Printing Library
This specialist small library houses an impressive range of books on graphic design, typography, bookbinding and papermaking. The books cannot be borrowed but can be photocopied or photographed (with permission). An essential visit for any graphic design student.

This specialist small library houses an impressive range of books on graphic design, typography, bookbinding and papermaking. The books cannot be borrowed but can be photocopied or photographed (with permission). An essential visit for any graphic design student.
Check the official site before travelling; hours and prices can change.
More museums

Sir John Soane's Museum
Free, tiny, deranged — Soane's own house preserved exactly as he left it in 1837.

The Wallace Collection
Free national museum in a Manchester Square townhouse — armour, Boucher, the Laughing Cavalier.

The British Museum
Free, vast, civilisationally heavy — go for one room, not all of them.
Source: wikivoyage