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Holy rapid prototyping, Batman! Smart Guides, which can be activated from within the View menu (see Figure 3), enable you to align an object quickly in relation to other objects on the canvas, or in relation to the canvas itself.
As you drag the selected object on the canvas, Smart Guides appear on the two sides closest to other graphics in your design. Even if there are no other graphics, Smart Guides make it very easy to center your selection on the canvas—horizontally, vertically, or both (see Figure 4).