You will now be able to pose questions to me for my biweekly advice column through Twitter (rather than just by emailing AskAriely@wsj.com) and Facebook. This means that everyone will get to see your questions instead of just my email inbox.

To submit through twitter, just tweet to @danariely with the hashtag #askariely.

To submit through Facebook, post a comment on my new Ask Ariely page: https://www.facebook.com/AskAriely

Looking forward to seeing your tweets and comments!

Irrationally Yours,

Dan

Today is the day that my free online class on coursera, A Beginner’s Guide to Irrational Behavior, opens to the public.

And in honor of this class, my three books will be available as an e-bundle at a discount ($19.99 for all three) until the day after the class starts, March 26th — but only until that date.

You can purchase the e-bundle through Kindle, Nook, iBookstore, Kobo, or Google.

And if you haven’t already signed up for A Beginner’s Guide to Irrational Behavior, it’s the perfect time to do it now! It’s not only FREE and open to everyone, but will surely keep you amused for the next six weeks.

Irrationally Yours,

Dan

Soon you’ll be able to have me in your pocket wherever you go…

5 years ago today Predictably Irrational was published.

It has been an amazing five years — and I just wanted to say thanks to those of you who read and reacted to this research.

Irrationally yours

Dan

.

p.s This was my blog post from 5 years ago:

I am delighted to announce the birth of Predictably Irrational.

Predictably Irrational was born after a rather long but mostly painless labor, and so far seems healthy and in good spirit. Predictably Irrational is largely orange and blue, but they tell me that this is normal (or at least acceptable).

At birth it is about 300 pages, and 9 x 6 x 1.1 inches.

They tell me that the next few weeks will be a lot of work around the clock, and sleepless nights. But as the proud father, I am looking forward to this next step.

Dan

Arming the Donkeys this week features Mike Norton of Harvard Business School. Mike and I discuss research on self-deception, and explore some of the ways in which we justify morally questionable behavior to ourselves — as well as some of the the psychological costs and benefits of this self-deception.

Here’s the link: https://itunes.apple.com/us/podcast/were-only-fooling-ourselves/id420535283?i=126244443&mt=2

Arming the Donkeys this week features Nina Mazar, assistant professor of marketing at the University of Toronto. Nina and I speak about her research on psychological licensing, or how we may be more likely to cheat after doing something good.

Here’s the link: https://itunes.apple.com/us/itunes-u/license-to-cheat/id420535283?i=125252000

Arming the Donkeys this week features Yoel Inbar, assistant professor of social psychology at Tilburg University. Yoel and I speak about how we sometimes punish ourselves when we feel guilty about things we’ve done, and how this behavior may not be the healthiest solution to our problems.

Here’s the link: https://itunes.apple.com/us/itunes-u/gluttons-for-self-punishment/id420535283?i=124887958

This week, the Arming the Donkeys podcast features Roy Baumeister, professor of psychology at Florida State University. Roy and I speak about ego depletion, and how the longer we resist temptation, the more likely we are to give in later.

Here’s the link: https://itunes.apple.com/us/itunes-u/why-willpower-doesnt-work/id420535283?i=123767041

Arming the Donkeys this week features Sreedhari Desai, assistant professor of organizational behavior at the Kenan-Flagler Business School at UNC-Chapel Hill. Dan and Sreedhari discuss her research utilizing childhood memories and toys to curb dishonesty in adults.

Here’s the link: https://itunes.apple.com/us/itunes-u/teddy-bears-and-truthfulness/id420535283?i=123580705