A World of InformationA visually stunning collection of facts and figures for all the family to enjoy How much do clouds weigh? Who invented the pencil? How many ways can you tie a knot? Discover the answer to these and many other questions in this elegant and absorbing miscellany of general knowledge. From music notation to Roman numerals and from the skeleton to the solar system, essential facts are brought to life by stylish infographics and fascinating commentary. With