As of January 2016, "English the American Way: A Fun ESL Guide to Language and Culture in the U.S." by Sheila MacKechnie Murtha and Jane Airey O'Connor has an average rating of 4.6 out of five stars on Amazon.com. "Intermediate English Comprehension" by Stephen Harrison scores 4.5 out of five.
The "English the American Way" course pack includes an audio CD or MP3 download and a book, while "Intermediate English Comprehension" is a Kindle book with free audio. "Learn English: Rosetta Stone English (American)" includes an audio component and is downloadable to Mac or PC. One Amazon reviewer points out that using the Rosetta course on iPhone or tablet requires a monthly subscription fee in addition to the purchase price. As at January 2016, this course has a large number of reviews and an average Amazon.com user rating of 3.9 out of five stars.