"Nanomaterials and Environmental Biotechnology" : Edited by Indu Bhushan (Shri Mata Vaishno Devi University, India), Vivek Kumar Singh (Shri Mata Vaishno Devi University, India), Durgesh Kumar Tripathi (Amity University, India), Nanotechnology in the Life Sciences Series, Springer Nature Switzerland AG, Cham, Switzerland, 2020, 434 pp, ISBN: 978-3-030-34543-3, £129.99, €155.99, US$179.99. Issue 4 (1st October 2020)