van Loon, A.J. Tom. 2020. “Book Review: Sedimentary Structures (4th ed.), by John Collinson & Nigel Mountney, 2019. Dunedin Academic Press Ltd, Edinburgh, Scotland. Xii + 340 Pages. Paperback: Price €40.00, £35.00, $35.00, ISBN 978-1-78046-062-8”. Geologos 26 (1):87-88. https://doi.org/10.2478/logos-2020-0007.