There are no US tariffs on books!
The Time-travelling Caveman - Terry Pratchett (Paperback) 19-08-2021
Unbelievable! - Paul Jennings (Paperback) 05-01-1995
Uncovered! - Paul Jennings (Paperback) 02-05-1996 Short-listed for YABBA Award for Fiction - Older Readers 1997.
Undone! - Paul Jennings (Paperback) 30-06-1994
Unreal! - Paul Jennings (Paperback) 05-01-1995