Practical Ethics, 3rd edition, revised and updated throughout, and with a new chapter on climate change, Cambridge University Press, Cambridge, 2011
hardback
paperback
e-book, mobipocket e-book

The Expanding Circle: Ethics, Evolution, and Moral Progress, with a new preface and afterword, Princeton University Press, Princeton, 2011
paperback

Also the Greek translation of Animal Liberation has been released,

Antigone, Thessaloniki, 2011
paperback

the Spanish translation of Animal Liberation,

Taurus, Madrid, 2011
paperback

the Japanese translation of Animal Liberation,

Jimbun Shoin, Kyoto, 2011
paperback

the Polish translation of In Defense of Animals,

Czarna Owca, Warsaw, 2011
paperback

the Portuguese translation of The Life You Can Save

Gradiva, Lisbon, 2011
paperback  

and the Polish translation of The Life You Can Save.

Czarna Owca, Warszawa, 2011
paperback