Measuring Abundance: Methods for the Estimation of Population Size and Species Richness. Data in the Wild Series. By Graham J. G. Upton. Exeter (United Kingdom): Pelagic Publishing. $97.13 (hardcover); $45.33 (paper). x + 226 p.; ill.; index of examples and general index. ISBN: 978-1-78427-232-6 (hc); 978-1-78427-231-9 (pb); 978-1-78427-233-3 (eb). 2020.