Straight forward, use their given material to study. Talk to recruiter, very helpful. Practice with yourself by doing given material with pen and paper. Time yourself so that you don't go over time.
2 case interviews & presentation. Case interviews were computation based and all interviews were conducted on the same day. You have to prepared to walk through the cases out loud.
Online assessment, CodeSignal, Powerday with 3 interviews (2 cases, 1 product). This process spanned over 2 months for me. The interview process was lengthy and so were the actual interviews. The CodeSignal assessment took me about 2 hours and the Powerday lasted 4 hours of back to back interviews with one break.