One of the big secrets of design is learning how to guide the visual direction of viewers; This principle is often overlooked by even the most experienced designers, so today we’re going to take a deeper look at how it works. Visual direction is controlling the eye movement of the user; this can be achieved by carefully selecting your images and by well-placed and aligned design elements.
It is greatly established that the default eye movement throughout the page (in an LTR – Left to Right – layout) is from the top left towards the bottom right, however; this can’t be further from the truth, by arranging the composition elements in a certain way, a designer can control and force the movement of the viewer’s eyes in and around the layout of the design. For example, the eye will travel along an actual path such as solid or dotted line, or it will move along more subtle paths such as from large elements to little elements, from dark elements to lighter elements, from color to non-color, from unusual shapes to usual shapes, etc. Graduation of size, and repeated shapes and size of related elements subtly leads the eye as well.
Read the rest of this article on http://webdesign.tutsplus.com/articles/design-theory/visual-direction-in-web-design/