Sara Williams is a former investment analyst and financial journalist. She has contributed many articles on tax and finance for national newspapers and for a number of years wrote for Which?, including the Which? Tax-Saving Guide and Which? Book of Tax. She is also the author of The What Investment Guide to Personal Tax and Perfectly Legal Ways to Pay Less Tax. Sara is now the executive chair of AIM-listed media business Vitesse Media Plc, which offers research, digital and social media, and event management in the tax, business and investment areas. Its titles include What Investment, SmallBusiness.co.uk, Information Age, TaxGuide.co.uk, GrowthBusiness.co.uk and Growth Company Investor. She holds qualifications in investment advice and management.