Hello Mardetanha,
Le jeudi 6 août 2015, 19:52:17 Mardetanha a écrit :
within next month I am going to give lecture about wikipedia and sister projects, I would like to know if have already prepared file to describe about wikipedia (and all sister projects), that I can use for this event. even if it is old it would be useful and I will update with current information.
There is a repository of presentations about Wikimedia projects at https://meta.wikimedia.org/wiki/Presentations , and another one at https://commons.wikimedia.org/wiki/Category:Wikimedia_presentations . I'm not sure many are up-to-date, but they can be used as inspiration to get you started :)
There's also a smaller list at https://wikimediafoundation.org/wiki/Press_room/WMF_Presentations but they seem more outdated.
Hope that helps,