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Lviv and Lyon are very different cities that have a lot in common. This book is a kind of guidebook that conveys the atmosphere of each of them, and the two storylines are skilfully inscribed in the history of cities and countries. Laura is an "Instagram addict" who plans her whole life around making new posts on the social network. She puts more importance on the reactions and likes of her followers than on relationships with close people. Olya also has an Instagram profile, but she posts photos and posts that are important to her, and she doesn't care how others react. Laura's profile idealises life and distorts the perception of reality, while Olya's profile shows the world without filters. One day, Laura's boyfriend accidentally saw Olya's page and felt attracted to this strange girl. But he is in France, in Lyon, and she is in Ukraine, in Lviv. The guy buys a ticket to Ukraine and discovers Lviv, where his family's tangled history began long ago.