Library paste is a sticky adhesive that is used to bind paper together. It is a popular tool that is frequently used by avid readers and students for bookbinding and crafting purposes. While the term "library paste" is commonly used, there are various synonyms that can also be used to describe this type of paste. Gum arabic, wheat paste, and starch paste are some popular synonyms for library paste. Other alternatives include animal glue, flour paste, and white glue. These synonyms may differ in terms of the ingredients used or the consistency of the paste, but they all serve the same purpose of binding paper surfaces together.