Symposium Proceedings of the Natural History Museum started in 2020. The original articles will be compiled from the authors who gave presentations in the symposium. The proceedings have been improved continuously. Nowadays, the articles are of good quality and have been more and more cited. The National Science Museum, Thailand (NSM) organizes the Thailand International Symposium on Natural History Museums and publish the proceedings yearly, so the NSM would like to invite all researchers to join the symposium and submit full articles for consideration of publication in the Symposium Proceedings of the Natural History Museum. The format of the proceedings are as follows: