Guide to the Jewish Year:

• The Jewish Months
  
  • Teshuva - Return
• Rosh HaShana
  • U'Nesaneh Tokef
  • Why is Rosh HaShana 2 days long even in Israel?
• Tzom Gedaliah - The Fast of Gedaliah
• Yom Kippur
• Sukkos
• Shmini Atzeres - Simchas Torah
• Chanukah
  • More on Chanukah
  • The Sacrifice of Chana and her Seven Sons
• Tu B'Shvat – The Fifteenth of Shvat
• Purim
  • Megillas Esther - The Book of Esther - Overview and Commentaries
• Pesach
• Sefiras HaOmer
• Shavuos
• Shiva Asar B'Tamuz
• The Three Weeks
• Tishah B'Av

Related Books Available from Barnes & Noble:

The Book of Our Heritage - The Jewish year and its days of significance.

Menucha Vesimcha - An excellent introduction to the basic laws and themes of the Jewish holidays.

The Festivals in Halacha: Rosh Hashana, Yom Kippur, Succos - An in-depth study.

The Festivals in Halacha: Chanukah, Purim, Tisha B'Av, Purim - An in-depth study.