This book has more than some instructors will need, but I think all of it has potential for being very useful. For example, I am using part of it to help me improve the layout of a book, another part to help me teach trainers how to write better instructional objectives, and the rest to refresh my learning in every area.
There is still the matter of teaching in an effective way, and this book was not developed for that purpose. But having a well organized block of instruction in which each part has a purpose, and having good printed material and plenty of participant interaction, will make teaching easier. This book provides all of that in abundance. I believe it should be a standard reference for committed trainers.