2 book in 1

[Rana]

Hi,
Sorry, i have a question!
In the translation edition of some books, there is 2 book, in 1!
So we must combine that, with which of them?!?

[Paula]

We would not combine in that circumstance unless there was another edition with 2 in 1 with the same content then those would be combined

[Rana]

Oh, i understand . Thanks.