This book explains both the theory and practice of e-Portfolio pedagogy and assessment in second and foreign language classroom contexts. The author addresses how e-Portfolios can help instructors make the most of the challenges and opportunities by the continuation of online and blended classrooms in post-pandemic education, and how students might be encouraged to capitalise on their social media literacy to fully engage with e-Portfolios. In addition to providing new insights for scholars of language pedagogy, the book equips language teachers with the practical knowledge and skills they need to use the e-Portfolio approach in their classrooms. It offers a balance between theory, research and the practice of an e-Portfolio approach, which will inform effective second language instruction and assessment as well as enhance key stakeholders' language assessment literacy.