Neil Lewis started his first business in 1999 in a back bedroom, with a computer and £2,000. Eight years later, his business was turning over £4 million and had a valuation of £12 million. Two year further on, the business closed and shareholders walked away with nothing. '100 Rules for Entrepreneurs' are the real-life business lessons - both good and bad - that Neil learned during that phase of rapid growth and sudden decline. Applying these rules, active and would-be entrepreneurs can skip many of the mistakes of start-up and growth businesses and massively increase their chances of success.