John T.D. Caleb is an Indian arachnologist whose research mainly focuses on the spider diversity, taxonomy and DNA barcoding. He has described over 50 new spider species across India and has over ninety research papers on an extensive range of taxonomic research on Indian spiders. His passion towards the systematics and biogeography of salticids got him the “Herbert Levi Fund for Arachnological Research” (HLMFAR) in 2017 by the American Arachnological Society (AAS) for studying the Salticids of India. 

Pradeep M. Sankaran is an Indian arachnologist with special interest in studying ground spiders. He has extensive field experience in the Western Ghats. Apart from studying spiders, his research interests also extend over to  millipedes. He has described 30 new spider species and has over fifty five research papers on the taxonomy of spiders and millipedes revising the status of several species of the Indian fauna. He is currently associated with the Division of Arachnology, Sacred Heart College, Kerala.