• In which situations does one fast if his tefillin fell to the floor?
• May one eat, drink, or nap while wearing tefillin?
• How often should one have his tefillin checked to ascertain their kosher status?
• What constitutes a left-handed person regarding wearing the shel yad on one's right hand?

The laws and customs surrounding the mitzvah of tefillin are numerous as they are intricate-yet they are crucial for every Jewish man to master. In The Tefillin Companion, Rabbi Yaakov Shmuel Marcus offers a clear summary of all pertinent laws and information, following the order of theShulchan Aruch.

This sefer is an invaluable guide for both Ashkenazi and Sephardi tefillin- wearers,  as  it  includes  the  laws pertaining to both sects. Written in an easy-to-read format, The Tefillin Companion is sure to become your go-to sefer regarding any and all tefillin questions that may arise.