Improve your Writing Tip #15 - Keep it short

Source : http://prowritingaid.com

People have a limited attention span, especially in the era of the 140 character tweet. Try to restrict sentences to 25-30 words. Over 50 words in a sentence and you're being long-winded. Make sure that you include some shorter, punchier sentences to raise excitement.
While Dickens may have revelled in the long sentence, and subordinate clause this makes his writing less accessible now than it should be, which is a shame.
Note, however, that Dickens was also a fan of the short sentence. For example, the opening of Bleak House "London. Michaelmas term lately over, and the Lord Chancellor sitting in Lincoln's Inn Hall. Implacable November weather." Here Dickens uses a one word sentence, and a three word sentence.