The GitBook Editor will trigger a new build each time you save a file (or when you edit the glossary or the summary).
But using the correct workflow, it's possible to work on a draft of your book then build it once it's finished.
- Create a new branch from the branches menu
- Enter a name that describe your modification, for example: "firstdraft"
- Select "master" as the origin branch
- Your active branch should now be the branch that you just created
- Edit your book like usual
- When your draft is finish, open the branches menu and click on "Merge Branches"
- Merge your draft branch into the master branch
- Delete your old draft branch