Email a professor who teaches personality psychology at a university. Politely explain you are an independent learner and ask if they have a syllabus with reading lists. Some professors share draft chapters of unpublished work for free.
Theoretical concepts are often illustrated through real-life cases, such as the lives of Helen Keller (for cognitive and self-theory) and Albert Einstein (for traits and temperament). Sage Journals Critical Reception Personology From Individual To Ecosystem Pdf Free Download