Please note that within this document, "Techum" refers to the Limit on Travelling outside of a Town on Shabbat or Holidays.
The General Issue of "Techum"
Establishing one's official Location [Mekom Shevitah] when Shabbat begins
Measuring the Techum
Eruv Techumin - Adding to the Techum by placing a meal outside town
The actual meal which is placed outside town to extend the Techum
One who is outside the Techum
Waiting by the Techum on Shabbat or Holidays, to prepare for the next day