This book celebrates the remarkable contributions of Dr Keiko Koda, a leader in second language (L2) acquisition and reading development, who retired from Carnegie Mellon University in 2024. The chapters in this volume explore recent theoretical developments and practical applications in L2 reading research from a cross-linguistic perspective. The book addresses a wide range of issues in L2 reading among diverse learner populations, including young multilingual learners from both low- and middle-income countries and post-industrial nations. It also focuses on various types of learners in different educational settings worldwide, such as foreign language learners, heritage language learners, and dual language learners. Topics covered include meta-analyses, innovative applications of theory in pedagogy, and the design of assessment tools. Collectively, these contributions have the potential to significantly advance both theoretical frameworks and practical approaches in the field. This book is useful for researchers, educators, graduate students, and multilingual education specialists interested in theoretical and practical advancements in second language reading and cross-linguistic transfer.