The REXX Language on TSO

I worked as a programmer for a major insurance company. In 1976 I aided in the introduction of TSO to the staff by testing it, creating a TSO user's guide, writing Clists, teaching classes in TSO, and making recommendations to the technical support personnel about TSO. I worked on TSO administration, managing user id's. I automated the administration by writing Clists, TSO native mode commands, utilities, JCL, Assembler language programs, and MVS utilities. At another major insurance company I was introduced to REXX on CMS, and there wrote a user guide for programmers on REXX. When TSO REXX became available in 1988, I began working with it. Several years of that led to the creation of my book "REXX in the TSO Environment." As a programming contractor, I automated the transfer of an entire data center's JCL and procedures to another data center, using REXX, IBM utilities, and TSO/ISPF panels. When the publisher decided to drop mainframe books in 1996, the book was no longer published. Shortly after that I created a course for TSO REXX, and began teaching it in various companies throughout the country, including at an IBM site. I turned the course into a book which I published and sold directly on one of my websites until 2004. When I became aware of On Demand publishing, I updated my book, converted it to electronic format and published it in 2012.