# Preview book changes locally It is easy to preview your local changes to the book before submitting a PR: 1. Build the local copy of the book from the `docs/book` path: ```shell make build ``` 1. To preview the book contents run: ```shell make serve ``` This should serve the book at [localhost:3000](http://localhost:3000/). You can keep running `make serve` and continue making doc changes. mdBook will detect your changes, render them and refresh your browser page automatically. 1. Clean mdBook auto-generated content from `docs/book/book` path once you have finished local preview: ```shell make clean ```