I 16/ 139:2

I stands for literature as a first-class category.

1 is world literature.

16 is an anthology of world literature.

139 is the call number automatically generated by the library, which means this kind of 139 book.

: 2 indicates the second edition or revised edition.

Generally speaking, you look for this book from its title. You can find the claim number of this book through the computer retrieval system, which is I 16/ 139:2. You can find the book you want according to the number.

The books in the library are arranged according to the categories of China Library Classification. You have to find the first category, that is, literature, and then follow the tips on the shelf to find books with the same category number.

Generally speaking, the claim number you find is composed of layers, which can be separated by symbols such as "/"and ":". It shouldn't be that complicated to find it layer by layer.