Instruct: Classify the given review into positive or negative sentiment.
Query: In a word - excellent

This is an invaluable book for anyone whose job involves persuading people to buy using the written word.Firstly it provides a framework for building a comprehensive picture of the customer, their issues and their purchasing triggers. Secondly it provides in depth advice on how to best use the information within the framework when constructing a proposal. Thirdly, and finally, it offers ways to optimise the process of bid writing to deliver competitive advantage when putting forward a proposal.I've been writing for a few years now in a business capacity and the insights within have given me lots of ideas on how to improve my writing generally, as well as an awesome head start on this new area for me.