As technology continues to advance by the day, so to do the ways in which people all around the world communicate with each other. Social media, email and instant messaging have replaced the phone call and the hand written letter as the preferred methods of communication. In the book Principles of Communication Systems, by author Louis Frenzel, students are provided the most current surveys available as they prepare to take their first level course in electronic communication methods. Originally set to print almost twenty years ago, this third edition of Principle of Electronic Communication Systems was released on January 26, 2007, and was published by McGraw Hill Education.

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