I would like to introduce this distinguished scientist from my personal experience as I was a PhD student of John I. Tait who was a PhD student of Karen Spärck Jones. When I started my PhD studies I asked John Tait about new references in the field of cross language information retrieval (CLIR), he told me to go to the library and look for a book called Synonymy and Semantic Classification . I went to the library and found the book, the book was old issued in 1986 for a PhD thesis wrote in 1964 as I remember. I thought that John Tait made a mistake, and at that time I did not know who Karen Sparck Jones is. I took the book back home and started reading, I couldn't stop reading the book until I fall into sleep. I figured out that this book was written by a distinguished person. After few days I had a meeting with John Tait and I told him do you remember the book that you advised me to read? He told me yes what about it? I told him it is an excellent book, the best I ever read.