Although there are many really good geography focused decks already, some are out of date, or contain way more information than needed to learn the topic at hand. For a deck to learn Capital cities/flags, having extra information like the population, language etc. is nice to have. But I personally find it distracting to have this information on a card. When learning Capital cities I just want the country and capital - nothing more. The idea behind these decks: - Should be up to date and current. - Should use an authorative source (i.e Wikipedia/Google Maps). - Should be easy to update. - Should be automatically generated - no user tweaking required to get the core deck. - Should be open source - the code is freely available with detailed instructions at .