Hi Evan,
the MCSD,MCT or MCP in the signature is not the most important thing. This is proof that you pass some Microsoft exams, but I know people who learning by heart dumps pass exams without any knowledge.
I figure out as most important real practice knowledge of VFP and T-SQL and product which my firm can offer to community.
Thank you for well written useful book Most of my programmers read it and some of them succeeded to pass VFP exams.