J.H. Prynne is Britains leading late Modernist poet. His austere yet playful poetry challenges our sense of the world, not by any direct address to the reader but by showing everything in a different light, enacting slips and changes of meaning through shifting language. Not since the late work of Ezra Pound and the Maximus series of Charles Olson have the possibilities of poetry been so fundamentally questioned and extended as they are in the life work of J.H. Prynne. When his Poems was first published in 1999, it was immediately acclaimed as a landmark in modern poetry. Four further collections were added to the second edition of Poems in 2005, followed by a further seven along with a group of uncollected poems to the third edition of Poems (2015). The decade since Poems (2015) has been the most productive period of Prynne's life, with over thirty limited editions published between 2017 and 2024. To have added these to a fourth edition of Poems would have more than doubled the size of that volume. Poems 20162024 is therefore a separate, supplementary edition of his later work, including, except for minor corrections, the mostly unchanged contents of 36 texts written since Poems (2015), from Each to Each (2017) to Alembic Forest (2024), including the corrected 2023 text of At Raucous Purposeful (2022). The 26 Impromptus comprising Memory Working, originally published by Face Press in three separate editions in 2020 and 2021, appear here as a complete sequence. Prynne's most productive decade has also seen the publication of three prose works, Graft and Corruption: Shakespeare's Sonnet 15 (2015/2016), Apophthegms (2017) and Whitman and Truth (2022), along with editions of Prynne's correspondence with Charles Olson (2017) and Douglas Oliver (2022). His two-volume Collected Prose is forthcoming from Oxford University Press (New York).