Kiley Reid’s Philadelphia-set debut, Such a Fun Age (Bloomsbury, £12.99), is a satire on white saviour syndrome, woke culture and virtue-signalling motherhood. That it manages this balancing act with such political finesse and humour is testament to the powers of its author, who, like her heroine Emira, the 25-year-old black baby-sitter, spent time nannying for white families.