Eid AL FITR , which is Arabic for  'festival of breaking fast ', is celebrated by Muslims to mark the end of the  9th month, called Ramadan, as well as spiritual reflection and prayer. Under usual circumstances, the day starts with prayers and a big meal is usually the main event, but there's lots of other ways people celebrate too.

How do Muslims celebrate Eid-al-Fitr?

Eid al-Fitr features two to three days of celebrations that include special morning prayers. People greet each other with “Eid Mubarak,”  and with formal embraces. Sweet dishes are prepared at home and gifts are given to children and to those in need. In addition, Muslims are encouraged to forgive and seek forgiveness. Practices vary from country to country.

In countries like Egypt and Pakistan, Muslims decorate their homes with lanterns, twinkling lights or flowers. Special food is prepared and friends and family are invited over to celebrate.

In places like Jordan, with its Muslim majority population, the days before Eid al-Fitr can see a rush at local malls and special “Ramadan markets” as people prepare to exchange gifts on Eid al-Fitr.

What does Eid Mubarak mean?

Eid Mubarak is a greeting used on the Muslim holidays Eid meaning "Blessed Eid"

Sorry this book was so short! I think I covered the basics but if I forgot something please let me know in the comments.

Eid Mubarak to all!

Edit: Eid al fitr is three days (and eid al adha is four)