Hsiung, H. (2024). Stephen Robertson. B C, Before Computers: On Information Technology from Writing to the Age of Digital Data. x + 161 pp., illus., bibl., indexes. Cambridge: Open Book Publishers, 2020. £18.95 (paper); ISBN 9781800640290. Cloth and e-book available. Isis: A Journal of the History of Science Society, 115(2), 430-431. https://doi.org/10.1086/730238