Last week, from September 18th to 22nd, Marianne and I were giving a short course on genetic diversity analyses in Belém, Pará, northern Brazil at The Brazilian Agricultural Research Corporation (EMBRAPA) - Eastern Amazon. It was a great opportunity to share our experience on data analyses, focusing on the use of R, with our fellows researchers from different institution of the Pará and Amazonas state. We had a great (but tiresome) time there! We deeply thank Dr. Elisa F. M. Cunha for the invitation and for making this course possible! Also we thank Dr. Ilmarina C. de Menezes for warmingly hosting us.