On an introductory level I can suggest "Geometric Tools for Computer Graphics" by Schneider and Eberly which contains formulae for the every day intersection and distance queries (be sure to check the errata when implementing the methods introduced). But what goes beyond that? Are there good and concise books about how to approach geometric problems in general?
With 'practitioner' I like to refer to people that want to use geometry in their applications / solutions without necessarily understanding the full theory of riemannian manifolds etc. As an example, a practitioners question to geometry would be: "How do I find and parameterize the family of 3D ellipsoids that intersect a given plane in a given ellipse?"
I don't weather I understand what you mean by "practitioner's book" correctly. I know a book by Patrick J. Ryan named "Euclidean and Non-Euclidean Geometry, an analytic approach". This book provides plenty of practical constructions of low dimensional objects rather than only existence results.
When you say `Practitioners,' I am not sure what group of people you mean.
A classic great text in Geometry is Moise's ``Elementary Geometry from an Advanced Standpoint." This is a text that serious geometers should have read while in Mathematics Graduate School, or at least, referenced upon occasion. Moise was a practitioner of Geometry who made significant contributions to the theory of 3-manifolds. (Indeed, Bing and Moise are attributed with one of the most important theorems of that field.)
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