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README.md

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-# IPython Cookbook 2nd edition: example data
+# Data of the IPython Cookbook, Second Edition (2018)
 
-This repository contains the example data of the [IPython Cookbook 2nd edition](http://ipython-books.github.io), the definitive guide to **high-performance scientific computing** and **data science** in Python. [The main repository is here](https://github.com/ipython-books/cookbook-2nd).
+This repository contains the data files of the [*IPython Interactive Computing and Visualization Cookbook, Second Edition (2018)*](https://www.packtpub.com/big-data-and-business-intelligence/ipython-interactive-computing-and-visualization-cookbook-second-e), by [Cyrille Rossant](http://cyrille.rossant.net), *Packt Publishing*.
 
 You don't need to clone or download this repository: the example code automatically downloads the datasets as need. You have nothing to do.
+
+The useful repositories are the following:
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+* [Code as Jupyter notebooks](https://github.com/ipython-books/cookbook-2nd-code)
+* [Source files](https://github.com/ipython-books/cookbook-2nd)