Learn to Spell 500 Words a Day: The Vowel O (Vol. 4) - Paperbackby Camilia Sadik (Author) Learn to Spell 500 Words a Day is a book in 6 volumes: A, E, I, O, U, and Consonants. Vowels rule English and they cannot be avoided. Hence, each vowel is dissected and isolated in a volume and The Consonants is the 6th volume. Having 100 Spelling Rules applied in 600 Phonics based Spelling Lessons, Children and Adults Learn to Spell Hundreds of Words at a Time Guaranteed The Vowel O book is for Children and Adults who can