@FrancescoC this is in the first chapter of the latest epub of your book...pic.twitter.com/eUbEEhpHcq
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
@knewter reviewing the figures right now, and checked the example. Looks fine in my version, so guess it is fixed, waiting for a new release