Last week, Chris Nodder shared some thoughts on the ethical questions raised by persuasive design, the subject of his new book, Evil by Design: Interaction design to lead us into temptation

Today, we're launching a contest to give away five copies.

Nodder has a question for you to answer. Answering will enter you into a contest to win the book.


What’s the most deceptive interface you’ve seen online, and is it good or evil?

There are three ways to enter:

Via Twitter

  • Make sure you're following UX Magazine on Twitter.
  • Use the paste the following text into a tweet "Hey @uxmag, <your answer>. Do I win a copy of Evil by Design?"
  • Replace the blank with your response to the question. Make sure to keep the rest of the tweet the same.
  • Publish the tweet.

Via Facebook

Via Email Subscription

Note: If, and only if, you've already subscribed via email, you can enter this giveaway by emailing your answer to

Five winners will be chosen from the valid entries. The contest ends on Friday, August 30th.