I will be traveling to the USA at the end of the year with a Tourist Visa, but I should also be applying for a fiance visa soon and I would like to start taking some books and comic books with me. I plan to leave them at my fiancée's house until I can actually move when (and if) the fiance visa is approved and we get married.
The sample U.S. Customs Declaration Form 6059B asks the items I am taking that will remain in the US and the respective prices of said items to apply some flat rate of duty on that. Considering that I won't be getting any money out of those books and aren't gifts either, how should I go about declaring that?
I would be taking a lot of books in my dispatched baggages and hand luggage, but I have no intent of selling them, only keeping them at my fiancée's house until we move for good, is it necessary to declare customs?