LETRS, Module 1: The Challenge of Learning To Read

The Speech sounds of English: Phonetics, Phonology, and Phoneme Awareness; Module 2 (LETRS; Language Essentials for Teachers of Reading and Spelling)

LETRS Module 3 : Spellography for Teachers: How English Spelling Works

LETRS Module 7 Teaching Phonics, Word Study and the Alphabetic Principle (Language Essentials for Teachers of Reading and Spelling, Module 7)

The Speech Sounds of English: Phonetics, Phonology, and Phoneme Awareness; Module 2

LETRS, Module 9: Teaching Beginning Spelling and Writing

LETRS Module 8 Assessment for Prevention and Early Intervention

Letrs Module 11 , Writing: A Road to Reading Comprehension (Language Essentials for Teachers of Reading and Spelling)