There are three different types of writing customs for the parchments inside tefillin: Beit Yosef, Arizal, and Vellish. Beit Yosef is the same script that Torahs are written in. Arizal script is only slightly different from Beit Yosef (seven letters differ), and is the preferred script of the Hassidic community. Vellish script is bolder,...