With This Volume, The Editors' Goal Is To Offer An Accessible Resource, Long-awaited By Educators Whose Individual Instructional Practice Andor Institutional Paradigm Shifted To A More Collaborative Approach To Language Education. Through This Collection Of Chapters, The Contributing Authors Closely Examine Eslefl Coteaching And Other Collaborative Practices By (a) Exploring The Rationale For Teacher Collaboration To Support Eslefl Instruction, (b) Presenting Current, Classroom-based, Practitioner-oriented Research Studies And Documentary Accounts Related To Co-teaching, Co-planning, Co-assessing, Curriculum Alignment, Teacher Professional Development, And Additional Collaborative Practices, And (c) Offering Authentic Teacher Reflections And Recommendations On Collaboration And Co-teaching. These Three Major Themes Are Woven Together Throughout The Entire Volume, Designed As A Reference To Both Novice And Experienced Teachers In Their Endeavors To Provide Effective Integrated, Collaborative Instruction For Efl Or Esl Learners.