A good one-stop-shop guide and toolsets for getting your enterprise architecture right. A lot of thought, experience, and funding have gone into this, and the results are well worth the price you pay for the book (and the actual accreditation should you or your organisation wish to go down that route). On embarking on the journey to this structured approach, one needs to carefully determine which components to select and implement first. I would start with the governance. Like other detailed methodologies (quality, architecture, design, and project management) it takes a lot of strong leadership and targeted funding to implement, but then what is the price of getting your enterprise architecture wrong?"