Thanks for the Feedback is nonfiction. I checked it out on OverDrive.
Review:
I listened to this audiobook while working on other things, so I unfortunately can't give a very good overview of how it's structured. If I remember right, the authors started by laying out their definition of "feedback," which is broader than you might expect. Telling someone the ways in which they could improve the presentation they just practiced counts as feedback. So does telling them that they did great and are going to do just fine during the real thing (encouragement rather than advice). And that person who honked at you during your morning commute because you were zoned out and didn't notice the light had changed to green was also giving you feedback.