There are a number of printed resources and professional firms available to provide training on branding strategies.
Start with the Internet. Search under “branding” as a category, and specifically check out firms like Landor Associates, Bass/Yager Citigate, Interbrand, and Prophet. Branding on the Web is an important part of today’s world, not only for dot-com companies, but also for brick-and-mortar companies with a presence on the Internet. This can be covered with Internet professional services companies like Razorfish, Scient, and IXL, to name just a few.
UC Berkeley marketing professor David Acker is a leading expert in the field. His groundbreaking book, Building Strong Brands, is an excellent resource for high-level branding education and insight.
Whatever your strategy, be prepared to invest enough in your brand-management campaign for it to bear fruit.