[header] How to create a back of book index [title] Review your book, copy all terms and phrases you want to see in the book index, and save them in a text file. [title] Choose a program to write and design your book index. [step] You can use microsoft word or adobe indesign, but locating your index terms will take a long time. 
There is a tool called pdf index generator that will locate your words faster and write the final index to your pdf book. [title] Open pdf index generator and define your list of terms that you have collected from your book.