More than 30 years after their stunning victory at the Eurovision Song Contest with "Waterloo" in 1974, ABBA s popularity remains undimmed. From disco classics like "Dancing Queen" and "Mamma Mia" to ballads like "The Winner Takes It All," the group s musical legacy endures, thanks in part to covers by artists ranging from U2 to Madonna. ABBA: The Scrapbook gives a complete history of one of the best-loved pop groups of all time: the early days in...