I spent 25 years working as a venture capitalist and thus have seen thousands of business plans, many containing the same mistaken assumptions about markets, segmentation, sales and marketing strategy and so on. I have also been involved with many young businesses and seen things go both right and wrong (my own book on the subject, Angels,Dragons and Vultures
Angels, Dragons and Vultures: How to Tame Your Investors... And Not Lose Your Company: Capital Advice for Entrepreneurs, covers all the issues around handling different types of investor in your business).
Sabrina Kiefer and Bart Clarysse's book covers the journey the entrepreneur needs to make from idea to success in a comprehensive, practical and readable way. They point up many of the pitfalls I have seen in plans and businesses around identifying suitable markets, making good assumptions about market share, protecting your IP, carving out your place in the value chain and, indeed, raising money. The book is illustrated and brought to life by many interesting and relevant case studies.
In 240 pages it is obviously not possible to cover every aspect of the topic in great depth, and entrepreneurs may want to move on to read around some aspects in more detail (like raising capital, for example). But this is a really good place to start and I would recommend it to all aspiring entrepreneurs.