Keywords: user_guide

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# 1 Introduction

This guide covers the usage of `PostProc`, version 6.6: an open-source package for postprocessing of data produced by `PWscf` and `CP`. `PostProc` is part of the QUANTUM ESPRESSO distribution and requires `PWscf` to be installed.

Important notice: due to the lack of time and of manpower, this manual is only partially updated and may contain outdated information.

This guide assumes that you know the physics that `PostProc` describes and the methods it implements. It also assumes that you have already installed, or know how to install, QUANTUM ESPRESSO. If not, please read the general User's Guide for QUANTUM ESPRESSO, found in directory `Doc/` two levels above the one containing this guide; or consult the web site:
`http://www.quantum-espresso.org`.

Further documentation, beyond what is provided in this guide, can be found in the directory `PP/Doc/`, containing a copy of this guide. People who want to contribute to QUANTUM ESPRESSO should read the Developer Manual, found in directory `Doc/` two levels above the one containing this guide: `Doc/developer_man.pdf`.