This 4 book lot by Ann M. Rossi is perfect for young readers aged 4-8. The Zoo Party part of online leveled books that are staple-bound and illustrated by Mick Reid. The books are published by Houghton Mifflin  and have a total of 271 words. The intended audience is teachers for are helping children who are learning to read.  They are in English and were published in China.

These books are basically new, just a minor hiccup here or there from storage. Most don't have that.