What books or reading lists would you suggest for professional development, personal development and leadership improvement? Non-mil as well

SSG Micah Wilson I would recommend 'A Vietnam War Story'
The book "every American should read" (Vietnam) now available in trade paperback. Here is the powerful story of one man's fight against bigotry, paralysis and his war enemy that led to the Medal of Honor. From migrant farm-worker and middle-school dropout to recipient of his country's highest award for bravery, Roy Benavidez demonstrated the courage and fortitude of an American hero. The half-Yaqui Indian, half-Mexican orphan fought his way out of the bigotry of South Texas to serve with the Army's elite -- the Special Forces. In February, 1981, President Reagan awarded him the Medal of Honor.

Everyone has different reading tastes so I have generally refrained from recommending books throughout my career, but there is one exception; The Three Meter Zone by JD Pendry is an excellent starting point for new leaders. It is an easy read and highlights a common sense approach.

"Gates of Fire" with or without 300 as an add on.