The Springer Handbook of Systems Sciences will be ready in early 2021
Editors: Gary Metcalf, Professor Emeritus Kyoichi Kijima and Professor Hirsohi Deguchi
Gary says "Let me simply say that organizing the writing of 50 chapters into a book of over 1000 pages has been challenging. It has taken much longer than I expected, but we are now in the final phases". Well done Gary Jim and Hiroshi.