ruby for beginner

hi ,
         I am a new bie in ruby. pls let me know how to start working
on ruby.which is good book
         for beginner of ruby. i have prior java experinece.

  Regards
  brajesh K.

hi

Programming Ruby is one of the better ones:
  http://www.pragmaticprogrammer.com/titles/ruby/

you can also find the first edition online:
  http://www.rubycentral.com/book/

marcel