A BI Book Reference Page (see Resources tab) has been added to identify the books I find most relevant and valuable to MSBI practitioners and developers as well as Excel and Power BI business analysts. For now the page just contains the titles, covers and links to Amazon. In the future I may post reviews and details (e.g. what is now irrelevant or different). For this list I went with the authors and titles I’m most familiar and comfortable with but feel welcome to recommend others in the comments.
Additionally, the Resources page itself has been updated and extended to link to common MSBI and Power BI sites and blogs.