Next week, Michelle Obama adds “guest editor” to her résumé, joining the taste-making ranks of Victoria Beckham, Tom Ford, and Olivia Palermo. Sort of. Starting August 20, she’ll be guest-editing mega-mommy blog iVillage. Readers can submit their questions for the first lady, who will focus on back-to-school topics, here. The Cut has already submitted “Should I go to back to school to fulfill my dream of becoming a marine biologist?”