Kondo, the “international tidying consultant”, needs little introduction. Her uncompromising approach to an overstuffed wardrobe has been the subject of a bestselling book and a Netflix series, teaching us how to “transform cluttered homes into spaces of serenity, inspiration and joy”. The “transformational magic” of tidying has now inspired her first picture book. Co-written with Salina Yoon, it features two friends: Kiki, a squirrel who likes collecting, and Jax, an owl who likes sorting. As a result, the friendship (a thin allegory for marriage) comes under strain. Eventually, Kiki lets Jax help her sort her possessions into piles for keeping, donating, recycling and throwing away: “ ‘If it sparks joy in your heart,’ Jax said, ‘keep it! And if it doesn’t, thank it and let it go.’ "