https://towardsdatascience.com/analyzing-global-literacy-rates-data-in-r-88062f813ad2
https://medium.com/nightingale/the-cycle-of-encoding-and-decoding-f3ff17010631
https://futuros.gob.es/sites/default/files/2023-09/RESILIENTEU2030.pdf
http://www.russellgroup.ac.uk/media/5227/jewelsinthecrown.pdf