St John Vianney (The Cure of Ars):
PREFACE
  CATECHETICAL INSTRUCTIONS
CHAPTER 1 thru  CHAPTER 9;   CHAPTER 10 thru CHAPTER 20:
EXPLANATIONS AND EXHORTATIONS

BALTIMORE CATECHISM: 
BOOK I;   BOOK II; BOOK III;  BOOK IV

Catechism of Trent

Book 1 Book 2  Book 3   Book 4 
 Book 5  Book 6   Book 7   Book 8