Handwriting analysis books are a popular subcategory of self-help books, and offer guidance on how to interpret one's handwriting. Through this type of book, readers can learn about topics such as graphology, or the science of interpreting a person's written script. Handwriting analysis books provide an in-depth look into the psychological and emotional states of the writer, allowing readers to gain insight into their own lives and relationships. These books are an essential tool for anyone interested in becoming a handwriting analyst or otherwise understanding themselves better.