Farber. This is the Ambulance Leaving the Zoo

This is the Ambulance Leaving the Zoo is a children's book by Norma Farber, with art by Tomie de Paola, published in 1975. It is available at the Internet Archive.

This is a book by a famous author and an even more famous illustrator! This is a chain like "The House that Jack Built" with the person or thing that is the subject of one line becoming the object in the next line. Unlike the way "Jack" is usually told, the story is not cumulative, and it's not in verse. Instead, it has another stylistic twist... can you see what it is? Here's how it starts:

This is the ambulance leaving the zoo.
This is the bus stopping to let the ambulance whiz by.
These are the cars piling up behind the stopped bus.
These are the drivers of the cars piling up.

Do you get it? It's an alphabetical story: A for ambulance, B for bus, C for cars, D for drivers, etc. Read the book to see the rest of the alphabet... as you've probably guessed, the Z will be zoo, and Y is a yak in the zoo. 

And look: it's not just an alphabet, but a circular alphabet! The first line is This is the ambulance leaving the zoo.

I don't think I've seen another alphabet book done in this chained "Jack" style; it could be a great experiment for students to try!