READ THIS BOOK! Even people who don't normally read fiction will enjoy this. Almost every chapter could be read by itself and the book certainly doesn't have to be read after Herriot's other four compilations. Ostensibly about animals, but with wonderful take on their owners and people in general, I found myself appreciating my fellow humans a little more than I did before I read Every Living Thing. The book is heartwarming, funny, sad, triumphant, and all-together wonderful. You must read it!
If you're an animal lover, there's no better author of animal-related stories than James Herriot. A retired British veterinarian, Mr. Herriot's writing puts you right alongside as he makes his rounds caring for animals and dealing with the sometimes unique personalities of their owners, as well as the fellow vets he worked with.
From what I could see, this book is comprised of stories that appeared in previously published James Herriot books. It's a good read, especially if you're not familiar with his work and want to get a taste before committing to other books. That said, though, I would still recommend his "All Creatures Great and Small" series of books for the full "Herriot experience".