My Career Story (MCS) comprises a self-guided autobiographical workbook designed to assist individuals across life's diverse spectrum to narrate and shape their career stories. We describe the development and use of the MCS and its relevance for all people contemplating career transitions. Results of a study using the MCS with 20 emerging adults in Northern Italy supported the validity of its use. Specifically, results indicated that individuals shift to more positive, clear, action-oriented language in the stories they tell at the end of the MCS workbook, after constructing their life portraits, as compared with the stories they tell at the opening of the workbook. Also, scores on measures of reflective capacity and hope increased following the MCS intervention. Results of the study further support use of the MCS in career intervention contexts.