There are plenty of them on the market these days, and most people have their favorites. I still have my first Peterson. It's hard-bound. The pages are falling out, but I won't throw it away.
The newer guides are, in many ways, more useful than the original Peterson guides which did often did not include immature, molting, hybridized, or non-breeding plumages. Those things can often confuse the experts - but the experts rely on more than appearance. Experts rely on the gestalt of the bird - habitat, sound, flight pattern, posture, behavior, etc.
I am an amateur, not an expert. Mrs. BD remembers that, when I was first dating her and showing her birds, I told her that bird species behavior is like individual human behavior: they tend to do the same sort of thing all the time so if you see a behavior or habitat once, it's safe to assume that they do that all the time.
Here's the good article about the field guides: Knowing a Hawk From a Handsaw.
Image is from Peterson: male Blackburnian and Hooded Warbler in spring breeding plumage.