This chapter summarises the main arguments for a Citizen's Basic Income. It first defines Citizen's Basic Income (sometimes called a Basic Income or a Citizen's Income) as an unconditional, automatic and nonwithdrawable regular income for each individual who is a legal resident of the UK, explaining in particular why it is unconditional, automatic and nonwithdrawable. It also gives emphasis on the fact that Citizen's Basic Incomes would be paid on an individual basis, rather than on the basis of a couple or household. Finally, it enumerates the benefits that a Citizen's Basic Income would bring, such as: promote social cohesion, reduce perverse incentives that discourage work and savings, and encourage caring and community activity. A graph shows what a Citizen's Basic Income looks like with respect to net income after tax and benefits and pre-tax income from all sources.