"The Book of Longing" is a collection of poems and illustrations by Leonard Cohen, published posthumously in 2019. The work reflects Cohen's exploration of themes such as love, desire, and spirituality, showcasing his unique voice and artistic vision. The book features a blend of lyrical poetry and visual art, with many pieces inspired by Cohen's own life experiences and relationships. It captures the essence of longing and the human condition, inviting readers to engage with the profound emotions that define our existence.