Question by Miljenko Lapaine:

Do you know who proposed or invented the ICA logo and when?

Question by Rubén Rodríguez:

Do you know a site where there are information about the map projections used by all countries, basically for topographic map as 1:25000; 1:50000 etc.?

Question by William Cartwright:

Is Beck's representation of the London Underground rail system a map or diagram and why? (in just one sentence). Please email your response to