First, please note that "McGee on Food and Cooking: An Encyclopedia of Kitchen Science, History and Culture" is the same book as "On Food And Cooking: The Science And Lore Of The Kitchen". The former is the UK title and the latter is the US title, the content is the same.
Don't expect to find recipes in this book. This is a first class reference work for people who want to know "how food works", from the structure of wheat grains to the effect of pH and trace metals on the colour of cooked fruit and vegetables. The writing is clear and concise and eminently readable. For geeks like me it's a page turner, just open it at random and you'll be hooked.