If you take nothing else from the PDF, take this. Adler maps out nine eye-lines relative to the lens. For , the eyes should follow a path (looking at a product, looking far away, looking at a partner). For entertainment , the eyes must pierce the lens ("the predator gaze").
I'm assuming you're looking for a report related to Lindsay Adler's posing guide, which is a popular resource among photographers. lindsay adler posing guide pdf hot
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For entertainment photography, the float is high and angular. For lifestyle, the float is low and relaxed. Without this anchor/float dynamic, your subject looks like they don't know where to stand. If you take nothing else from the PDF, take this