While we ask for a *detailed* packing list, there is always a question of how detailed the list should be. Descriptions such as electric appliance would be too general as it can refer to some large items including PC’s, TV’s and refrigerator. Likewise description such as furniture or household items could refer to a wide variety of things. Descriptions such as personal items, souvenirs, mementos, keepsakes are not acceptable because they can mean almost anything. On the other hand, you do not really have to be too meticulous. Some people even write the title of each book but this would not be necessary if you are moving from Japan and shipping them as unaccompanied personal effects. Good, detailed packing list would give customs officers an impression that you are honest and trust worthy. In this sense, it may be very useful once your consignment arrives at the shipping destination.