The slightly different travel guide: In the book tip “Azzurro” the author guides you through Italy with 100 songs. You won’t be able to stop humming as you read. Christine Westermann

Summer in Italy: Azzurro. Everything sky blue, but for one, as Adriano Celentano sings, thinking of his beloved in the sweltering heat of an Italian city, it looks gloomy. It’s somewhere on the beach. Without him of course.