I haven't used the book enough to make it worth the price I paid but it's a nice refresher for things I should know but don't remember.
The book continues to have extensive information about writing-related topics. Everything from proper grammar, to writing reports, to interviewing subject matter experts, how to do Internet research for a writing project, writing newsletters and/or abstracts, interviewing for a job and interviewing a subject matter expert for more information about a subject, writing proposals, and so forth is covered in this book. There's even a companion web site to the book that provides links to online resources for further information.
The book's preface contains what the editors consider their "Five Steps to Successful Writing," and also a "Checklist of the Writing Process," complete with subsections containing listings for (in order) Preparation, Research, Organization, Writing a Draft, and Revision. In fact, a few of the book's numerous entries contain their own "writer's checklist" of things to do. Some subjects have not only a heading, but cross-references to other pages of related topics. For example, if I was interested in learning how to write a proposal, I could go to that listing, and also find reference information on internal and external proposals. There seems to be at times an endless wealth of information about whatever writing topic you are looking for. This book's main strength obviously is how all the book's material is organized.
This is one book every writer should have. Even though it isn't a "how-to-write" book, it's still a "tools for writing" book. I find myself referring to it often when I'm working on any kind of writing project.
As with past editions, the book's editors have done a wonderful job with this handbook.