The symbolism of having days when 3, 5 or 7 people are called to the Torah: Megillah 23a
The symbolism of calling up 6 people on Yom Kippur: Megillah 23a
How many people are called up on a Monday or Thursday: Megillah 21a, 21b, 24a
Whether the number of people called up includes the person called up for the Special Reading from the Prophets: Megillah 23a
How many people are called up on Shabbat: Megillah 21a, 23a
How many people are called up on Shabbat afternoon: Megillah 21a, 21b, 24a
How many people are called up on a Public Fast Day: Megillah 22a-b
How many people are called up on the 9th of Av: Megillah 22b
How many people are called up on the First of the Month: Megillah 21a
How many people are called up on the Intermediate Days of Holidays: Megillah 21a
How many people are called up on days with a Special [Musaf] Offering, but without holiday status: Megillah 21a
How many people are called up on days with a Special [Musaf] Offering, and with holiday status: Megillah 21a, 23a
How many people are called up on Yom Kippur: Megillah 21a, 23a
Who is Called Up
Calling up a woman: Megillah 23a
Giving the Kohen the First Ascension to the Torah: Ketuvot 25b
Giving a Levite the Second Ascension to the Torah: Ketuvot 25b
Calling up 2 Kohanim in a row, where there is no Levite: Ketuvot 25b
Giving a Torah Scholar the first Ascension to the Torah: Megillah 22a; Ketuvot 25b
Giving a Torah Scholar the second Ascension to the Torah: Ketuvot 25b
Calling up a minor: Megillah 23a
Adding to the Number of People Called to the Torah