by Jotora
I see what you mean though. Since each title has a distinct number and you're called to "sort" them, you could be meant to take titles from the top of the stack (or one of the stacks in a 4-5 player game) and work your way through it.I feel the rule book would have included a rule as important as this, however.
Of course, official confirmation would put all doubts to rest. *waits*