LION(Literature Online) has added 51 Volumes of the Cambridge Companions to Literature series.
The Companions to Literature is a highly valued series of volumes on a whole range of literary themes, periods, writers and movements. Each volume is edited by a leading scholar in the field and presents specially-commissioned essays written by experts. Browse through the available titles through the link above. A few titles are listed below:

• Cambridge Companion to American Realism and Naturalism. Pizer, Donald (ed.)
• Cambridge Companion to American Women Playwrights. Murphy, Brenda (ed.)
• The Cambridge Companion to Aphra Behn. Hughes, Derek (ed.)
• The Cambridge Companion to Byron. Bone, Drummond (ed.)
• The Cambridge Companion to Chaucer. Boitani, Piero (ed.)
• The Cambridge Companion to Coleridge. Newlyn, Lucy (ed.)
• The Cambridge Companion to Contemporary Irish Poetry. Campbell, Matthew (ed.)
• The Cambridge Companion to Crime Fiction. Priestman, Martin (ed.)
• The Cambridge Companion to David Mamet. Bigsby, Christopher (ed.)
• Cambridge Companion to D.H. Lawrence. Fernihough, Anne (ed.)