1. amazon.com | 2. waterstones.com | 3. amazon.de | 4.bol.com | 5. lafeltrinelli.it | 6. saxo.com | 7. saxo.com/dk | 8. ibs.it | 9. thriftbooks.com | 10. ebay.co.uk | 11. mightyape.co.nz | 12. foyles.co.uk | 13. harvard.com | 14. copperfieldsbooks.com | 15. bookshop.org | 16. blackwells.co.uk | 17. www.hatchards.co.uk | 18. liftbridgebooks.com