The first socialization debate (1918) and early efforts towards socialisation: edited by Jürgen Backhaus, Günther Chaloupek and Hans A. Frambach, Springer, Cham, 2019, 235 pp., £100 (hardcover), £70 (softcover), ISBN 978-3-030-15023-5 (hardcover), ISBN 978-3-030-15026-6 (softcover). Issue 4 (4th July 2021)