I've read all the "Ron Mags" - magazines highlighting the various careers of L. Ron Hubbard.

One of my favorites, which is contained in a web site as well, is L. Ron Hubbard, The Poet/Lyricist (Poems by L. Ron Hubbard)

And one of my favorite poems is his "Declaration of Peace" from Battlefield Earth.

You can read it here: Declaration of Peace by L. Ron Hubbard - Ron, The Poet/Lyricist

L. Ron Hubbard wrote many essays on social issues, particularly in the late 1960's.

Having grown up at that time, reading these essays is particularly revalatory for me. As I lived through those days I was swept away and quite confused by the events of the Viet Nam war, campus revolts, "flower-power". It wasn't till many years later, reading these essays, that I understood what was really behind the social upheaval of the time.

These essays are published on the Net here:
L. Ron Hubbard The Humanitarian: Freedom Fighter Articles and Essays