NetworkNewb wrote: » You want us to guess on which will be the best book to buy when they haven't even been released yet??
shochan wrote: » You have time to take the 401 till like mid 2018...with many editions of books of this exam you should go ahead & just study for this older test, IMO.
TheAmerican wrote: » When will material on the new test 501 be out. - Also what will be the best books to buy