So we had six Haggadot available in our house for Passover this year. Though haggadahs - books on the order of the seder service - are published in a bunch of different editions, we learned this year that the order itself hasn't changed since at least the 1300s.

This nifty site showed us some classic Haggadot. It's part of the many things world Jewry has developed to help take advantage of technology and bring us together when we have to stay apart.
https://yahad.net/collection 

It was common at one time to get multiple copies of Haggadot via product sales (we have a couple published by Maxwell House). These days, people can order copies via their bookstores, Jewish publishing houses, and even download ones to print out and use.

Some particular copies stand head and shoulders above the rest. Among them is the creation of an illustrator and designer named Arthur Szyk. We happen to have a copy of it, but our copy is a pale imitation of the original printing and the newly reissued versions.

I ask that you read about it a little bit here. Take your time. You can return to this thread whenever.
https://www.szyk.com/szyk-haggadah/index.htm?mnHd=0&mnSubHd=0