When it comes to design and new technology we always end up in conversation where we discuss if this new tool or gadget is something we "need". And often we realize that we don't really need it but we still want it. We also know that there is an ethical issue related to this. We are as designers usually inclined to say we want to develop design in a direction where we create the things people need in a better way. It is something suspicious with design that is directed to create "need", or exploit basic desires that people have, if they are not "good for you". Usually these discussions quite quickly becomes confused and difficult.
Reading the book "On Desire --Why We Want What We Want" by William B. Irvine gives you some better foundation in those discussions. Irvine carries out an analysis of desire. It is done in a straight-forward way, easy to understand, but still firmly related to the philosophical history, psychological research, religious schools of thought. Irvine both tries to analyze desire, but also to give some general advise on how to deal with desire.
I think the book is a good reading for any designer involved in being in service of people's wishes, needs and desires.
A final comment. I like the design of the actual book. The unusual size and format makes the book interesting and appealing.