Offices in the USA:
Libros Desafío
2850 Kalamazoo Ave. SE
Grand Rapids, Michigan 49560-1100
USA

Sales:
1 (800) 426-8355
1 (616) 224-0799 (representative in Spanish)
1 (616) 224-0834 (fax)
Email ventas@librosdesafio.org

Offices in CANADA:
Libros Desafío
3475 Mainway
Burlington, ON L7M 1A9
Canada