Take Sarah Jessica Parker. She pops up on the cover of Elle back in January, Vogue in August and Marie Claire in September and delivers each monthly its second or third best seller of the year. Or, let’s consider Heidi Klum, who can help deliver Lucky its second best seller in March (175,000 sales in a year when they need it!) or bring the August Glamour its second best performer (510,000 sales, in a year when they really need it!). Or Jennifer Aniston, who was Marie Claire’s top seller of the year in that sleepy summer month of July, and, from all indications, delivered Elle one of its best performers of the year in November. Read the full articlehere.