Designing for Emotion by Aaron Walter is definitely less expensive if you buy it from the publisher, A Book Apart. As of this writing it’s $41 on Amazon and you can get two of them from ABA for that price. Support small press publishers!
I put off reading this book for a long time because I thought it was about designing for emotional situations. Shows what kind of reading comprehension I’ve got! It’s actually about designing a product or interface to resonate with its own emotion – giving your product a personality and voice and tone.
As a UX Designer, it invites me to think of different interactions that my designs can have with our users – from silly and playful to sincere and human. It talks about techniques for researching both the design persona one starts with and the usability tests one uses when the design persona has been drafted.
Like most of the A Book Apart books, this book isn’t designed to be the be-all-end-all on the topic, but rather an introduction to it, which will give you enough information to move more deeply into designing for emotion either by experimenting or by using the resources listed at the end of the book.
I would’ve liked a few more examples of what can go wrong, but otherwise, it was a well put-together book and one that I thoroughly enjoyed reading.