mainframes

If you want to know how to use or develop on an AS/400, this is definitely not your book. If, however, your goal is to develop a basic understanding of what an AS/400 actually is and what it does, it's not a bad choice.

This is a book that I think would sit well in the office of a manager who has only peripheral involvement with the management of an AS/400 system. It's also not a bad introduction to the AS/400.

I still keep this one in my office along with my other related books, but I've never been happy with what I got for the money.

This book is an excellent training reference and is structured much like a classic school text. It's printed nicely, large pages, good diagrams, and enough white space to off-set the important points in each section. This is very easy to study and scan for answers when you need a quick reference in fundamental AS/400 areas. Much of the contents are presented by IBM in their manuals, but we all know how stimulating they are! George Lin presents the lessons in a methodical manner. I have tons of highlighted sentences and dozens of bookmarks. This is a necessary text for anyone beginning in AS/400 operations. As I write this, the newer OS/400 dates this text somewhat. Perhaps George will refresh this for OS/400 V5R1? I'd buy it!

A very useful book giving an overview of AS/400 system and commonly used utilities/programming tools.

The concepts are explained in simple terms. There are many examples, lab excercises etc to make the reader comfortable with the system.

An essential book for any person who is just getting in to As/400 system.