Shimon D. Eider was an Orthodox Jewish Rabbi and a decisor of Jewish law. Eider was a pioneer in the field of Jewish law in English. He authored several texts. He received his Rabbinic ordination from Rabbi Moshe Feinstein

Moshe Feinstein

Moshe Feinstein was a Lithuanian Orthodox rabbi, scholar and posek , who was world-renowned for his expertise in Halakha and was regarded by many as the de facto supreme halakhic authority for Orthodox Jewry of North America during his lifetime...

. He was a long time resident of Lakewood Township, New Jersey

Lakewood Township, New Jersey

-Demographics:As of the census of 2000, there were 60,352 people, 19,876 households, and 13,356 families residing in the township. The population density was 2,431.8 people per square mile . There were 21,214 housing units at an average density of 854.8 per square mile...

 and an esteemed member of the advanced Kollel of Beth Medrash Govoha

Beth Medrash Govoha

Beth Medrash Govoha is a Haredi yeshiva located in Lakewood Township, New Jersey. It is commonly known as BMG, or Lakewood Yeshiva....

 and was frequently consulted as an expert on the construction of eruv

Eruv

An Eruv is a ritual enclosure around most Orthodox Jewish and Conservative Jewish homes or communities. In such communities, an Eruv is seen to enable the carrying of objects out of doors on the Jewish Sabbath that would otherwise be forbidden by Torah law...

in. Eider died on September 28, 2007.

Works

• Halachos of Hanukkah
  Hanukkah
  Hanukkah , also known as the Festival of Lights, is an eight-day Jewish holiday commemorating the rededication of the Holy Temple in Jerusalem at the time of the Maccabean Revolt of the 2nd century BCE...
  
  
• Halachos of Niddah
  Niddah
  Niddah is a Hebrew term describing a woman during menstruation, or a woman who has menstruated and not yet completed the associated requirement of immersion in a mikveh ....
  
   (Ritual Purity)
• Halachos of Pesach
• Halachos of Shabbos
• Halachos of Tefillin
  Tefillin
  Tefillin also called phylacteries are a set of small black leather boxes containing scrolls of parchment inscribed with verses from the Torah, which are worn by observant Jews during weekday morning prayers. Although "tefillin" is technically the plural form , it is loosely used as a singular as...
  
  
• Summary of Halachos of Eruv
  Eruv
  An Eruv is a ritual enclosure around most Orthodox Jewish and Conservative Jewish homes or communities. In such communities, an Eruv is seen to enable the carrying of objects out of doors on the Jewish Sabbath that would otherwise be forbidden by Torah law...
  
   (Shabbath)
• Summary of Halachos of the Four Minim (Sukkoth)
• Summary of Halachos of the Three Weeks
  The Three Weeks
  The Three Weeks or Bein ha-Metzarim is a period of mourning commemorating the destruction of the first and second Jewish Temples...
  
  (Month of Av)