Eleanor Porter's Pollyanna is widely considered a classic of children's literature.
Pollyanna is a kind novel advocating an optimistic outlook, which is summarized in a famous quote 'When you look for the bad in mankind expecting to find it, you surely will'. Pollyanna, a young orphan, is living with her stern aunt, who is taking care of her out of 'sense of duty'. Under any circumstances Pollyanna prefers to see only their best side, taking joy in simplest things, she affects everyone around her. Hence a popular term 'Pollyannaism', or the Pollyanna Principle, a subconscious bias towards the positive. The tale of Pollyanna will undoubtedly infect the reader with cheer and gladness.