1 Reply Latest reply on Sep 22, 2017 10:20 AM by Tom with Wiley

    My Registration says it has already been used

    Michael Zelinka

      I am using the same book for the current class I am in, but this year it required me to re-enter the registration code. Once I did, it said that the code was already used and invalid. Can it not work for the same book? Should I buy another code?