If you like shopping for Japanese books, like I do, you should at least check Amazon Japan for preview pages and customer reviews before you purchase them. (http://www.amazon.co.jp). And then you can shop elsewhere where shipping fee is cheaper, maybe.
Amazon Japan ships with DHL. It charges handling fee as much as 1,900 yen per shipment (to Indonesia/Asia), and 300 yen per book. Last week I ordered 3 books, so the shipping fee was: 1900 + (300 x 3)= 2,800 yen. Had I ordered the books on Neowing, the shipping fee with EMS (Express Mail Service) would be only 2,100 yen (for 1,2 kg). Both are trackable shipping.
But there are books that are available within 24 hours on Amazon Japan but only available 1-3 weeks after you order on Neowing. For shipping to Indonesia, DHL (on Amazon Japan) is also 2-3 days faster than EMS (on Neowing). So even though the shipping fee is more expensive, Amazon Japan is still my no. 1 favorite place to order for Japanese books.
Books that I bought:
-a Korean language textbook/workbook for intermediate level, with CD,
-a bilingual essay book (Korean-Japanese, of course), also with audio CD (narrated by the author himself)
-a book on practical advice on learning foreign languages written by a Russian language professor who speaks dozens of languages.
You can also shop in English on Amazon Japan.
And don’t forget to check their help pages on the bottom.
Amazon Japan charges the highest for shipping fee, but it is fast, reliable, you can cancel at the last minute before order is shipped if you change your mind (I do this often. I’m bad), and you can even return purchased goods and get full refund, no question asked (but I never tried it from Indonesia, I did it accidentally in Japan once. The delivery man returned my order to Amazon Japan because I was never at home). ###