On June 30, 2021, Clarivate released the impact factors of scientific journals for 2020. The impact factor of IAWA Journal, sponsored by the International Association of Wood Anatomists, is 2.308 in 2020. The past impact factors were 1.627(2019), 3.182(2018), 1.903(2017), 0.403 (2016), 1.043 (2015) and 2014 (1.074).