The book I´m gonna comment to you about was written by Mauriel Barbery, a French novelist and teacher of philosophy. She was rewarded with the Prix des libraires (The bookshop prize, a remarkable prize in France) for this novel beacuse she was very ingenious making a so psichologically-charged plot, adding a pich of satirical and critical humor.
The plot focuses on two particular Parisian persons: Paloma Josse is a eight-year old girl who doesn´t care about her family because they underestimate her intelligence. The funny fact is, actually, Paloma is intelectually gifted and she realises about her family´s weak points (her father is a hypocrite minister, her mother is a woman who depends on antideppresive pills and her older sister is a fanciful and despective universitary girl). Meanwhile the doorwoman, René Michel, is a fifty-four-year old woman who pretends to be a simple person, when in her house (or inside of her heart) is an erudite woman who loves classic literature. She acts like a brute poor woman beacuse she doesn´t want an important job or (the most important reason) she doen´t want to deal with so many hypocrite and rich people.
Paloma and Mrs. René will meet each other better and become friends beacuse they know and share really deep opinions about literature, the people who live in the building and the way to analyze and judge other people.
Paloma explains (not explicitly) that the name of the book refers to Mrs. René´s mask (the fact to protect herself) as prudent and elegant as the hedgehogs.
I recommend this book because I didn´t imagine that a little fictional girl can make us see the truth (rich people can be really intellectually ignorant, and also respect to the real value of the things) and question herself about the things who aren´t obvious either right: Just Biases!