Book excerpt: Modality Matters! A Look at Task-Based Outcomes / Julio Torres -- The Differential Effects of Three Types of Form-Focused, Computer-based Grammar Instruction : The Case of Receptive Heritage Learners / Sara M. Beaudrie and Bonnie C. Holmes -- Effects of Instruction on Specific Measures of Accuracy in Spanish Heritage Learners' Writing / Adrián Bello-Uriarte -- The Secret Is in The Processing : Categorizing How Spanish Heritage Learners Process / Celia Chomón Zamora -- What Type of Knowledge Do Implicit and Explicit Heritage Language Instruction Result In? / Melissa A. Bowles and Sara Fernández Cuenca -- "Incorporating Our Own Traditions and Our Own Ways of Trying to Learn the Language" : Beginning-level Spanish as a Heritage Language Students' Perception of Their SHL Learning Experience / Damián Vergara Wilson -- Beyond Registers of Formality and Other Categories of Stigmatization : Style, Awareness and Agency in SHL Education / Claudia Holguín Mendoza -- Towards an Understanding of the Relationship Between Heritage Language Programs and Latinx Student Retention and Graduation : An Exploratory Case Study / Diego Pascual y Cabo and Josh Prada -- Heritage and Second Language Learners' Voices and Views on Mixed Classes and Separate Tracks / Florencia G. Henshaw - Afterword : Studying Outcomes to Bridge the Gap between Teaching and Learning / Maria M. Carreira.