P. EckhardWitten and Brian K.Hall, (Nearly) everything you ever wanted to know about the notochord but maybe were afraid to ask?The Notochord: development, evolution and contributions to the vertebral columnCRC Press, Taylor and Francis Group, Boca Raton, 2022, 250 pp. (hardback: ISBN 9781498787918, US$ 130.00 or £99.99) – also available as paperback and as an eBook (£40.49).