Go to the stacks and browse around the area where the original title is shelved - you just might find other materials on the same subject!
The Cambridge Companion to the Twentieth-Century English Novel by 
The Cambridge Companion to Twentieth-Century English Poetry by 
The Cambridge Companion to Twentieth-Century British and Irish Women's Poetry by
Forms of Modern British Fiction
Drexel Library Book Shelves (2nd floor) PR883.F6
This volume is made up of five chapters: a basic introduction to British Modernism, followed by discussions of specific writers (Woolf, Hardy, Murdoch, Beckett, etc.).
Post-War British Fiction: Realism and After
Drexel Library Book Shelves (2nd floor) PR888.W66 G37 1995
This book discusses modernist and postmodernist novels in the context of their relation or conceptualization of 'realism.' While it is not a survey, many important British writers are discussed. The upper-level student will find it most useful.
A Companion to the British and Irish Novel: 1945-2000
Drexel Library Book Shelves (2nd floor) PR881 .C655 2005
The essays in this book probe the boundaries of novel in the changing cultural and literary space of the late twentieth century. The essays range in scope from those on particular works to those on how novels in general relate to genres of film and video, for instance.