"A Miscalculation" is a book by the writer Paul Ollen, which tells the story of a successful analyst who seemed to have everything in life: a great job, the respect of his colleagues and a luxurious apartment complex. However, one day he makes a serious miscalculation that costs him not only his job, but also shatters his ideals. The book helps to understand how important it is to accept one's own mistakes, teaches to be humble and not to be afraid to start again from a clean slate. "Miscalculation" is a story about self-improvement and self-belief that will leave a mark in the hearts of readers.