This is a flat and wet land. In the very north are some hills and the Yi and Shu rivers (he) that flow to the sea. Further south is the Huai, which once flowed to the sea, but had its course interrupted by the Yellow (Huang) River floods, and thereafter turned south to flow into the Yangtze (Chiang) River (jiang). That river nearly divides the province in two and, until a bridge was built in the 1960's, it did so. Besides rivers are canals, most famously the Grand Canal cutting north across the province. And then there are thousands of lakes, including Great (Tai) Lake, at the very south of the province, and Hongze Lake, helping to control the Huai's floods. There are some hills in the very south.
This province straddles the linguistic boundary between speakers of Putonghua(3) Chinese--the language of central_and_northeastern China and Wu Chinese, spoken south of the Yangtze, and perhaps north of it some. I've guessed the majority speak Putonghua.
The government of Jiangsu Province resides in Nanking(4), a former home of emperors, west-northwest of Shanghai. Other cities (shi) with more than a million metropolitan residents are Suzhou, Wuxi, Xuzhou, Zhenjiang and eight others.
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(1) Chiang-su in Wade-Giles transliteration; translates literally as River Revival.
(2) Sheng in Wade-Giles transliteration.
(3) Also called the Beijing dialect or Mandarin Chinese.
(4) Nanjing in Pinyin transliteration.