This book examines why it is important to appreciate cultural artefacts such as poems, sculptures, and buildings not as static, perfected objects, but as meshworks of entangled, mutable, and trans-personal forces. Offering six such case studies across the long twentieth century, the book focuses on how poetic works activate closer appreciation of literature’s hybridity. The book analyses how such texts are collaborative, emergent, and between-categories, and shows why this matters. It focuses, first, on how printed poetry is often produced collaboratively, in dialogue with the visual and plastic arts; and second, how it comes about through entangled and emergent agencies. Both have been overlooked in contemporary scholarship. Although this proposal makes some trouble for established disciplinary modes of reception and literary classification, for this reason, it also paves the way for new critical responses. Chiefly, Fugitive Pieces encourages the development of modes of literary critical engagement which acknowledge their uncertainty, vulnerability, and provisionality. Such reading involves encountering poems as co-constituted through materials that have frequently been treated as extra-literary, and in some cases extra-human. Focusing on works by Djuna Barnes, David Jones, F.T. Prince, Ted Hughes, Denise Riley, and Paul Muldoon, Fugitive Pieces fosters closer attention to how literary works operate beyond the boundaries of artistic categorization and agency. It examines the politics of disciplinary criticism, and the tensions between anthropocentric understandings of value and intra-agential collaborative practices. Its purpose is to stimulate much-needed analysis of printed works as combinatorial and hybrid, passing between published versions and artforms, persons and practices.