  These notes are devoted to the intriguing and still largely unexplored links
between String Theory and Higher Spins, the types of excitations that lie
behind its most cherished properties. A closer look at higher-spin fields
provides some further clues that String Theory describes a broken phase of a
Higher-Spin Gauge Theory. Conversely, string amplitudes contain a wealth of
information on higher-spin interactions that can clarify long-standing issues
related to their infrared behavior.
