We're midway in a kitchen designing project when a friend loaned me this book. I'm considering buying a used copy since it's now out of print.
Chapter-wise, there's an introduction to the idea that modern kitchens are too standardized and glamorized to be well-matched to the needs of the cook, and the idea of customizing the kitchen to personal use patterns, as well as a discussion of realistic average patterns. There's a chapter talking about fitting the kitchen with the layout of the house as a whole, as well as a chapter focusing on where to put different task areas within a given kitchen. Interesting discussion of choosing where things are stored affects the functionality of the kitchen as much as the layout choices of where the appliances go. Nice ideas about comparing layouts using a string to map your walk between stations while doing various tasks.
Also practical chapters on budgeting money and time for your project, and how to hire help, though this is partly outdated.
Because he's all about customizing the kitchen to the space, there are 2-3 carpentry chapters on cabinet design (door/drawer size choices), in-place cabinet construction (using the room walls and neighboring cabinets as sides/back instead of lots of freestanding Nx24x36 boxes), as well as an appendix on a simple home woodshop to do this in.
Another appendix deals with efficiency studies, motions used in food preparation and cleanup, etc. The author often refers to Frank and Lillian Gilbreth's efficient design principles - meaning that as a fan of Cheaper by the Dozen, I found Clark's design advice even more appealing.
All around, somebody would have to be very inspired by this design philosophy to need every chapter of this book, but even knowing I'm not interested in some of his ideas (I'm so buying ready-made cabinets, and I'm not into open shelving) there are some great ideas about how to make a kitchen very useable. While the book encourages me to ignore some "rules" of standard modern design as I make my kitchen flow logically for me, the same "do what suits you" principle argues that I can ignore Clark, too, if I decide that's best. Take what you need and leave the rest, but it's all a good read.