This document provides a trainee handbook for teacher training at Universidad Tecnologica del Sureste de Veracruz. The handbook aims to design a training manual to develop teaching dossiers for trainees. It includes general information about the training, requirements for trainees, application forms, course rules, and strategies for the training structure and timing. The handbook also covers six main areas for developing teaching dossiers: language awareness, language and culture, language learning processes, language teaching, planning and evaluation, and self-assessment. The goal is to guide trainees to understand and design dossiers in these areas for any topic or English level.