Mummy's new collection - cast iron cooking pots and pan

Last week daddy agreed to drive mummy to IKEA.  Mummy already made a list of things to get for our renovated home including things for Iman like a swing, night light, curtain and matching bedsheet.  Few things for the kitchen, table lamps and so forth... I was frusterated the rack which I really wanted for Iman's room was not yet restocked.  But mummy was so happy to get all the cast iron casserole pots and pan which I had been dreaming of having all these years.  They were blue in color and I was able to get one ceramic serving dish in the matching color.  Now I am searching the net on how to handle them and how to cook with them.