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We present a fast focus+context viewing technique for the navigation of classical hierarchical layouts. In these layout techniques, only one dimension is considerably important to the visualization. Based on this property, we consider only one dimension of distortion of views for browsing the hierarchical structures. We firstly introduce briefly some information visualization techniques. We then discuss the features, advantages and limitations of layout and navigation of current classical hierarchical layouts. We finally introduce our new focus+context technique that is simple and fast for the navigation and exploration of the classical hierarchical layouts.