If you ever wanted a book that contains almost everything you would ever want to develop your management skills, this is it. As a business coach, I have found it remarkably thorough and recommend it to my clients often.
This is a different iteration of the original book 'The Fifth Discipline', (both are by Peter Senge) - itself a breakthough book.
The work Senge created in the Fieldbook version is practical and do-able, with the focus on individual exercises in as wide a range of management applications as you could need. I think it's a leap ahead of the original for that reason.
That being said, there are some more up to date areas that have evolved, such as, for example, Succession Planning, but with the vast array of components in this book, many of these will be covered off anyway.
For anyone who wants both a dip-in workbook as well as a groundbreaking comprehensive manual, this book must be in your library, it will serve you well for the whole of your management career.
By the way, if you buy it on here (Amazon), don't be put off by the number of pages. If you buy it (after trying to pick it up!) in a bookshop, don't be put off by it's weight!
If you take it a 'module' at a time, you will find it remarkably readable and fun - but I wouldn't attempt to read the whole thing in one go - just take your time.
Enjoy meandering around it, it's a truly fascinating read!