Hi Richard,
there is a Book I can recommend, the authors are Juergen Gulbins and Uwe Steinmueller, the title in German is "Handbuch digitale Dunkelkammer, vom Kamera File zum perfekten Print", or in Englisch "The Digital Photography Workflow Handbook, from import to output"
I have read it, it deals a lot with the necessary workflows and their adaption to your surroundings, dependent on your gear and personal style.
It concerns one in all solutions (like phocus, but phocus is not mentiones) but also the combination of different tools (one in all tools with special tools, special tools with special tools)
The German and Englisch version of this book can simply be found e.g. at amazon at. - There you can quickly have a look into the books online.
Even if this book is not directly written on the focus of step-by-step use of phocus, it helps a lot understandig the workflows, the possibilities of splitting the workflows between different tools and the digital data manipulation.
Peter