Showing Your Appreciation

This is a free document. You have no obligations beyond those given in the GNU Public License (Appendix C). However, if you want to do something in return for getting this book, there are a few things you could do.

• Send me a postcard to
  Ori Pomerantz
  Apt. #1032
  2355 N Hwy 360
  Grand Prairie
  TX 75050
  USA
  If you want to receive a thank-you from me, include your e-mail address.

• Contribute money, or better yet, time, to the free software community. Write a program or a document and publish it under the GPL. Teach other people how to use free software, such as Linux or Perl.

• Explain to people how being selfish is not incompatible with living in a society or with helping other people. I enjoyed writing this document, and I believe publishing it will contribute to me in the future. At the same time, I wrote a book which, if you got this far, helps you. Remember that happy people are usually more useful to oneself than unhappy people, and able people are way better than people of low ability.  

• Be happy. If I get to meet you, it will make the encounter better for me, it will make you more useful for me ;-).