30 Days to Bar Mitzvah

"30 Days to Bar Mitzvah" by Rabbi Dovid Gross is a book designed to help bar mitzvah boys learn about the mitzvah of tefillin, the obligation to wear tefillin (prayer phylacteries). It offers a 30-day program with brief, insightful lessons exploring Torah concepts and life messages related to tefillin. 

The book aims to help bar mitzvah boys understand the significance and meaning of the mitzvah, going beyond just learning the basic halachot (Jewish law). It's a resource for both the bar mitzvah boy and his family to deepen their understanding of tefillin and its role in Jewish life. 

The book's structure, with its 30-day program, suggests a gradual introduction to the mitzvah, allowing for a deeper and more meaningful learning experience.