The world's leading Publisher of books with Aviation Humour, since 1982

Bookprices have remained friendly and stable since 1982….

Shipping costs have exploded though. At this moment postage for 1 book to any country outside the Netherlands has gone up with more than 500% since 1982 while the bookprice is almost the same as 30 years ago. Keep in mind that postage for 1 book is the same as postage for 4 books and starting at five books shipping is free.
Your solution for economic shopping is simple:

Order more than 1 book