There are a number of traditions among the various Jewish communities regarding the form of the letters in which the passages of Tefillin, Torah scrolls, Megillot and Mezuzot are written. According to all the traditions, the letters must be written in black ink.
1. There are two types of Ashkenazi Script:
a. Beit Yosef script, which is the standard Ashkenazi script.
b. Ari script, which is used by Chasidim.
These two scripts differ only in regard to the writing of seven letters, as can be seen in the following illustrations.
2. Sefardi script is used by Eastern and Yemenite Jews.