I warmly welcome any feedback and questions concerning the gallery. Feel free to contact me if:

  • You want to report a bug or mistake, it really helps improving the gallery quality
  • You want to suggest a new graph. Please send me a piece of reproducible code and I will probably add it to the gallery
  • You wish to sponsor the gallery
  • You’re looking for somebody to speak about R and data visualisation
  • You’re looking for help on data science, I sometimes accept some extra freelance work
  • You have any other question or feedback !


Please contact me by email at Yan.holtz.data@gmail.com for any suggestion! Note that I receive an important amount of messages, so please don’t be upset if it takes me a while to get back to you.

Note that I am also on twitter and linkedIn if you want to follow the gallery.