The below information is from https://www.dsc.org.uk/publication/the-welfare-benefits-and-tax-credits-handbook/
The definitive guide to the social security system, and an essential resource for all advisers who are serious about giving the best and most accurate advice to their clients.
The book provides comprehensive information about entitlement to all benefits, together with full details on the rules about work, work-related responsibilities and the work capability assessment, the income and capital rules, benefit sanctions, the ‘bedroom tax’, overpayments, fraud, and how to challenge decisions. The Welfare Benefits and Tax Credits Handbook provides comprehensive advice about entitlement in 2019/20.
It has been newly restructured, making it easier to use, and refocused to bring universal credit to the fore.
The above information is from https://www.dsc.org.uk/publication/the-welfare-benefits-and-tax-credits-handbook/