The Passover seder has a particular order which is outlined in the Haggadah. All Haggadahs have the order of the seder and most have additional readings and explanations added. Some Haggadahs have beautiful artwork throughout the book as well.
The seder order is below:
The seder starts with the blessing over the wine called the Kiddush. The leader says the blessing and everyone drinks their first cup of wine.
Washing hands without any blessing.
Dip parsley (or another similar vegetable) into salt water and eat it after a blessing. The salt water represents the tears of the slaves.
One of the three matzahs on the table is broken. Part is returned to the pile, the other part is set aside.
Telling the story of the Exodus from Egypt. This is the main part of the seder.
Washing hands again, with a blessing in preparation for the meal.
Recite two blessings over the matzah and taste the matzah for the first time that year.
A blessing is recited over the bitter herbs which are then eaten usually with some matzah.
The bitter herbs are combined with charoset on matzah and eaten after short reading.
The main meal. This is a break in the seder and includes a full meal and dessert.
The piece of matzah that was set aside is located and/or ransomed back, and eaten as the last part of the meal, a sort of dessert. This is the last thing you can eat for the night.
Grace after meals.
Psalms of praise, and at the end of this section, we bless and drink the fourth and final cup of wine.
The end of the Passover seder.