The Torah, or five books of Moses, is the central piece of literature in Judaism. A section from the Torah called a sedra is read each week in shul, with a haftarah, a relevant reading from the prophets, normally supplementing it. Each week in the year has a set sedra, it's own set section, and the sedrot (plural) are read in the same order throughout the year.
The Torah scroll is a carefully written manuscript.
The first sedra in the Torah, Bereshit, is read on Simchat Torah, just after the last part of the last sedra, Vezot Ha-Berachah.

The five sedrot are known commonly as Genesis, Exodus, Leviticus, Numbers and Deuteronomy. These names were assigned to them by Roman translators around the year 300 ce. However, their real names are: Bereishit (In the Beginning), Shmot (Names), Vayikra (And he called), Bamidbar (In the desert) and Devarim (Sayings). Each book is a link to the further subdivision of parshot, the weekly sections, and the commentaries on each.