This is to let everybody know that US Post Office rates are rising. As such we’re having to raise our postal rates for DOMESTIC customers, effective immediately. Within the US: 1-2 regular-sized books will now ship for $13 (up from $11). 3-4 regular-sized books will now ship for $16.50 (up from $15). INTERNATIONAL rates will remain $34.50 for 1-2 books.