> For the complete documentation index, see [llms.txt](https://janelia-flyem.gitbook.io/neutu/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://janelia-flyem.gitbook.io/neutu/main-windows.md).

# Main Windows

There are three types of main windows in NeuTu:

* **Home Window**: The foremost window of the application. It is mainly used to launch a new proofreading window.
* **Proofreading Window**: Each proofreading corresponds to one proofreading session. The main view shows proofreading data slice by slice on the XY plane.
* **3D Window**: 3D windows are usually launched from the proofreading window to show proofreading data in 3D visualization.

![](/files/-Lz8zV9AP-rVl5LDSRbM)