Dewey Decimal Classification - Children's Encyclopedia (Ages 8-11) The Dewey Decimal Classification (DDC) is a system for organizing the contents of a library. It is commonly known as the Dewey Decimal System. It helps people find nonfiction books on any subject in the library.
Top 10 Largest Cities in China. According to the related data and statistics of the 6th nationwide population census, the following cities are the Top 10 largest cities in China by urban resident population (exclude suburban, county and county-level city) in China. No. 1 Shanghai.
1 The population of China is estimated at 1,393,783,836 as of July 1 2014. 2  China's population is equivalent to 19.24% of the total world population. 3  China ranks number 1 in the list of countries by population.4  The population density in China is 145 people per Km2. The population density in China is 145 people per Km2. 2  54% of the population is urban (756,300,115 people in 2014). 3  The median age in China is 35.7 years.