This book offers an original guide to teaching English grammar to secondary multilingual learners through school genres and crosslinguistic classroom practice. It brings a descriptive approach to English grammar into secondary classrooms, showing how grammar choices shape meaning, clarity, cohesion, stance, and audience understanding. Part I introduces key resources in English grammar, including word classes, phrases, clauses, information packaging, and cohesion. Part II applies these resources to descriptive, narrative, expository, argumentative, persuasive, procedural, reflective, dialogue, monologue, and digital genres. The chapters use mentor passages, annotation routines, classroom tasks, feedback prompts, and teacher resources to support purposeful grammar teaching. Rather than treating grammar as error correction, the book frames learner language as evidence for inquiry and revision. It helps pre-service and in-service teachers connect descriptive grammar, crosslinguistic awareness, and inclusive language pedagogy to everyday classroom decisions. Sonia Rocca is a world languages educator at the Lycée Français de New York, USA.

She holds a PhD in Applied Linguistics from the University of Edinburgh, UK and is the author of DIGICOMPASS (2024) and DIGICOMPASS Junior (2026). A Fulbright Global Scholar and English Language Specialist, she advances inclusive approaches to multilingual language education.