Venue

There are trains and direct buses from Linate and Malpensa airports to Milano Centrale train station and viceversa, see  https://www.trenitalia.com  

or

https://www.malpensaexpress.it/

or

   https://www.atm.it/

  Moving inside Milano: informations about local buses can be found in
  https://www.atm.it/

 Tickets can be bought in shops (typically News kiosks or Tabaccheria)   or directly on buses, using credit cards.