On Pesach Night, Jews around the world commemorate the redemption for Egypt and the birth of the nation. In this light, Jews spend this night recounting the miracles and events that, ultimately, led us to redemption.
However, merely acknowledging an aspect of the redemption is not enough. Therefore, Jews spend quite some time over a plan, called Haggadah, that directs the adherents through this process, recognising that, at each stage, G-d was directly involved and a great debt of gratitude is owed.
The books here Haggadot, the planned reminiscing over our redemption and birth. Many have interpretations, commentary, or stories written by special individuals or for specific type of people.