I thought for a moment it was World Book and Coffee Day. My misread was perhaps because I have my copyright while I was more in immediate need of my coffee. Still, I wanted clarification; 'World Book Day' or 'World Book and Copyright Day.' From https://www.worldbookday.com/, in the UK and Ireland the next 'World Book Day' is on 7 March 2019 while 'World Book and Copyright Day' is today, 23 April 2018, in other countries. More details on that at https://en.unesco.org/commemorations/... since this is an UNESCO initiative.

Scot Fin