Composed in Middle-Age Spain (c.1100 - c.1400 CE). The Zohar (Splendor or Radiance) is the foundational work in the literature of Jewish mystical thought known as Kabbalah. Tikunei Zohar is a unique addendum to the Zohar that was written by Rashbi himself, whereas the Zohar was written by Rashbi and his ten Holy Friends and other "guests."
Tikunei Zohar consists of seventy explanations (Tikkunim, "repairs") of just the first word of the Torah, "BeREiShiYT." However an additional eleven tikkunim appear in the long Introduction.