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This article is devoted to tangible interfaces for steering and control of software intensive presentations. Various methods for digital encoding of physical objects are considered and their applicability in surface encoding for tangible interface components is discussed. Experimental results with presentation controls, based on direct interaction with digitally encoded printed handouts are reported. An innovative approach for transferring presentation controls from printed handouts to surfaces of real physical objects is introduced. Consequently, digitally enhanced labels are constructed and presentation control experiments involving a real product with digitally encoded surfaces are conducted.