Editions of Six not-so-easy pieces

152 pages

English language

Published March 5, 1998 by Perseus Books Group.

Paperback, 223 pages

Italian language

Published Jan. 1, 2004 by Adelphi.

150 pages

English language

Published April 5, 2005 by Basic Books.

184 pages

English language

Published March 5, 1998 by Perseus Books Group.

152 pages

English language

Published Feb. 5, 1997 by Addison-Wesley Pub..

154 pages

English language

Published Sept. 15, 2011 by Basic Books.

217 pages

Chinese language

Published Feb. 5, 2001 by Tian xia yuan jian chu ban gu fen you xian gong si.

Paperback, 176 pages

Published Sept. 13, 1999 by Penguin Books Ltd.