It is divided into six chapters (called enneadss) and each chapter is subdivided into nine subchapters (called tractates). The Ennead were the nine most important gods and goddesses in Egyptian mythology, .

Table of contents

• The First Ennead:
  • First Tractate - "THE ANIMATE AND THE MAN."
  • Second Tractate - "ON VIRTUE."
  • Third Tractate - "ON DIALECTIC [THE UPWARD WAY]."
  • Fourth Tractate - "ON TRUE HAPPINESS."
  • Fifth Tractate - "HAPPINESS AND EXTENSION OF TIME."
  • Sixth Tractate - "BEAUTY."
  • Seventh Tractate - "ON THE PRIMAL GOOD AND SECONDARY FORMS OF GOOD [OTHERWISE, 'ON HAPPINESS']"
  • Eighth Tractate - "ON THE NATURE AND SOURCE OF EVIL."
  • Ninth Tractate - "THE REASONED DISMISSAL."

• The Second Ennead:
  • First Tractate - "ON THE KOSMOS OR ON THE HEAVENLY SYSTEM."
  • Second Tractate - "THE HEAVENLY CIRCUIT."
  • Third Tractate - "ARE THE STARS CAUSES?"
  • Fourth Tractate - "MATTER IN ITS TWO KINDS."
  • Fifth Tractate - "ON POTENTIALITY AND ACTUALITY."
  • Sixth Tractate - "QUALITY AND FORM-IDEA."
  • Seventh Tractate - "ON COMPLETE TRANSFUSION."
  • Eighth Tractate - "WHY DISTANT OBJECTS APPEAR SMALL."
  • Ninth Tractate - "AGAINST THOSE THAT AFFIRM THE CREATOR OF THE KOSMOS AND THE KOSMOS ITSELF TO BE EVIL: [GENERALLY QUOTED AS "AGAINST THE GNOSTICS"].

• The Third Ennead:
  • First Tractate - "FATE."
  • Second Tractate - "ON PROVIDENCE (1)."
  • Third Tractate - "ON PROVIDENCE (2)."
  • Fourth Tractate - "OUR TUTELARY SPIRIT."
  • Fifth Tractate - "ON LOVE."
  • Sixth Tractate - "THE IMPASSIVITY OF THE UNEMBODIED."
  • Seventh Tractate - "TIME AND ETERNITY."
  • Eighth Tractate - "NATURE CONTEMPLATION AND THE ONE."
  • Ninth Tractate - "DETACHED CONSIDERATIONS."

• The Fourth Ennead:
  • First Tractate - "ON THE ESSENCE OF THE SOUL (1)."
  • Second Tractate - "ON THE ESSENCE OF THE SOUL (2)."
  • Third Tractate - "PROBLEMS OF THE SOUL (1)."
  • Fourth Tractate - "PROBLEMS OF THE SOUL (2)."
  • Fifth Tractate - "PROBLEMS OF THE SOUL (3). [ALSO KNOWN AS, "ON SIGHT"].
  • Sixth Tractate - "PERCEPTION AND MEMORY."
  • Seventh Tractate - "THE IMMORTALITY OF THE SOUL."
  • Eighth Tractate - "THE SOUL'S DESCENT INTO BODY."
  • Ninth Tractate - "ARE ALL SOULS ONE?."

• The Fifth Ennead:
  • First Tractate - "THE THREE INITIAL HYPOSTASES."
  • Second Tractate - "THE ORIGIN AND ORDER OF THE BEINGS. FOLLOWING ON THE FIRST."
  • Third Tractate - "THE KNOWING HYPOSTASES AND THE TRANSCENDENT."
  • Fourth Tractate - "HOW THE SECONDARIES RISE FROM THE FIRST: AND ON THE ONE."
  • Fifth Tractate - "THAT THE INTELLECTUAL BEINGS ARE NOT OUTSIDE THE INTELLECTUAL-PRINCIPLE: AND ON THE NATURE OF THE GOOD."
  • Sixth Tractate - "THAT THE PRINCIPLE TRANSCENDING BEING HAS NO INTELLECTUAL ACT. WHAT BEING HAS INTELLECTION PRIMALLY AND WHAT BEING HAS IT SECONDARILY."
  • Seventh Tractate - "IS THERE AN IDEAL ARCHETYPE OF PARTICULAR BEINGS?"
  • Eighth Tractate - "ON THE INTELLECTUAL BEAUTY."
  • Ninth Tractate - "THE INTELLECTUAL-PRINCIPLE, THE IDEAS, AND THE AUTHENTIC EXISTENCE."

• The Sixth Ennead:
  • First Tractate - "ON THE KINDS OF BEING- (1)."
  • Second Tractate - "ON THE KINDS OF BEING (2)."
  • Third Tractate - "ON THE KINDS OF BEING (3)."
  • Fourth Tractate - "ON THE INTEGRAL OMNIPRESENCE OF THE AUTHENTIC EXISTENT (1)."
  • Fifth Tractate - "ON THE INTEGRAL OMNIPRESENCE OF THE AUTHENTIC EXISTENT (2)."
  • Sixth Tractate - "ON NUMBERS."
  • Seventh Tractate - "HOW THE MULTIPLICITY OF THE IDEAL-FORMS CAME INTO BEING: AND UPON THE GOOD."
  • Eighth Tractate - "ON FREE-WILL AND THE WILL OF THE ONE."
  • Ninth Tractate - "ON THE GOOD, OR THE ONE."

A full transcript of the English translation of The Six Enneads can be found at http://ccat.sas.upenn.edu/jod/texts/plotinus. This edition is the Mackenna and Page translation. The TOC above is taken from there.