The IBM Lotus Notes and Domino 8.5.3 Upgrader’s Guide begins with an overview of the SOA characteristics of Lotus Notes and moves on to the features and changes in Lotus Notes Client 8.5.3, before providing an overview of Lotus Symphony productivity tools.
The book is written for Lotus Notes power users ( whatever this means. So far, I do not know anybody, I would call a power user ) administrators and developers.
I ( as a developer ) think that 60 pages, that cover the new and enhanced features in Domino Designer does not justify a recommendation to developers.
Experienced administrators will get no real information that goes beyond the information contained in the release notes for a new release of Lotus Notes and Domino.
My favorite content is hidden in chapter 7 / page 207 ff. You will find a small script to export the reports from Domino Configuration Tuner.
I recommend this book to managers and/or decision makers.
It can be leveraged by these people to gain a high-level understanding of the new features and capabilities offered.