A new edition of Programming in Scala , by Martin Odersky, Lex Spoon, and Bill Venners, was published on December 13, 2010 by Artima , Inc. The 2nd edition of the Jolt Productivity Award-winning "staircase book" has been updated for Scala 2.8, with more than 100 pages of new content covering:
copymethod on case classes
Programming in Scala, 2nd Ed. is available directly from Artima  as a PDF eBook for $29.95, in softcover for $54.95, and as a discounted eBook/softcover combo for $69.95. The softcover is also available from Amazon.com .