LINCHPIN: Are you indispensable? By SETH GODIN

Linchpins are the essential building blocks of great organizations. Like the small piece of hardware that keeps a wheel from falling off its axle, they may not be famous but they’re indispensable. 2 hours/2 CDs No Poshmark account? Use my code NAWK to save $15 off your first purchase. Code must be entered during sign up to get the discount.