When Sylwester Wardega, a Polish Youtuber, decided to dress his dog Chica in an oversized spider costume and "unleash" her on unsuspecting passers-by in his hometown, an internet phenomenon was born. The so-called "Mutant Giant Spider Dog" was one of the most popular videos on YouTube in 2014—some achievement when you know that more than 1 billion unique users visit the video sharing site each month. Bringing together the most adorable and moving examples of this unstoppable online trend, this carefully curated collection includes 120 clips, with each entry carrying a QR code, instantly guiding readers to the most rewarding YouTube dog clips. From global viral hits to hidden gems and the most creative spins on this ever-evolving new genre, this is the perfect gift for dog video fanatics and newbies alike.