Deadly Maps and Evasion Charts are just two of the very many types of maps referenced on a website that is a gold mine for map searchers, that of the Dudley Knox Library at the Naval Postgraduate School. The well sorted website provides links to a great many websites for current and historical maps as [more...]
In the 18th century wealthy men with private libraries in their grand houses wanted elegant furniture around them. The upmarket cabinet-makers of the period created fine desks and chairs, but how could they design new, improved versions of the step-ladders needed for reaching books from the highest shelves? One idea was to conceal steps under [more...]
The International Standard Book Number (ISBN) is a unique 10-digit number used to identify books and other products, such as calendars and greeting cards. It does not include a bar code, it is just a number. The EAN, or Bookland symbol, is 3-digits + the ISBN, making a 13-digit number and includes a bar code [more...]