Sync to the furthest read page. With Amazon's Whispersync technology, you can automatically save and sync your furthest page read, bookmarks, notes, and highlights across all your devices. That means you can start reading a book on one device, and pick up where you left off on another device.
Calculate your postage rate using the international postage price calculator. For a first-class letter to Canada, the first ounce of postage costs 85 cents, a two-ounce letter costs $1.17 and a three-ounce letter costs $1.49, as of the time of publication.
Using First-Class International Mail, a letter that weighs 1 ounce or less costs $1.15, a 2-ounce letter costs $1.72, a 3-ounce letter costs $2.29, and a 3.5-ounce letter costs $2.86. This assumes no special mailing service is required. A postcard to Mexico costs $1.15 in postage.