Crystallography, that underpins nearly all of the sciences today, remains relatively unknown to the general public.The International Year of Crystallography (IYCr2014) has greatly helped to raise awareness of the role that this science plays in our world, and many efforts have been made to spread the message of crystallography in various countries where scientific activity is not as well developed or as well organized as elsewhere.However, crystallography still seems to remain an unresolved matter in academic environments of even some developed countries.As an example, the American Crystallographic Association and the US National Committee for Crystallography suggested in 2006 that "perhaps due to rapid technological advances in the field of modern crystallography, there appears to be a declining number of professional crystallographers, as well as a lack of sufficient education and training in crystallography...".In this context, the Department of Crystallography and Structural Biology of the Institute of Physical-Chemistry "Rocasolano" (Spanish National Research Council, CSIC) offers a website entitled "Crystallography-Cristalografia" that occupies a space internationally recognized to learn Crystallography: http://www.xtal.iqfr.csic.es/Cristalografia/