He Wrote the History Book

There! You shed a ray
  of whimsicality on a mask of profundity so
    terrific, that I have been dumbfounded by
it oftener than I care to say.
               The book? Titles are chaff.

Authentically
     brief and full of energy, you contribute to your father’s
          legibility and are sufficiently
synthetic. Thank you for showing me
               your father’s autograph.