Book excerpt: Customised Books in Early Modern Europe and the Americas, 1400‒1700 examines the form, function, and meaning of alterations made by users to the physical structure of their book, through insertion or interpolation, subtraction or deletion, adjustments in the ordering of folios or quires, amendments of image or text. Although our primary interest is in printed books and print series bound like books, we also consider selected manuscripts since meaningful alterations made to incunabula and early printed books often followed the patterns such changes took in late fourteenth- and fifteenth-century codices. Throughout Customised Books the emphasis falls on the hermeneutic functions of the modifications made by makers and users to their manuscripts and books. Contributors: B. Boler Hunter, T. Cummins, A. Dlabačova, K.A.E. Enenkel, C.D. Fletcher, P.F. Gehl, P. Germano Leal, J. Kiliańczyk-Zięba, J. Koguciuk, A. van Leerdam, S. Leitch, S. McKeown, W.S. Melion, K. Michael, S. Midanik, B. Purkaple, J. Rosenholtz-Witt, B.L. Rothstein, M.R. Wade, and G. Warnar.