Related Clues:

• Kind of stock: Abbr.
• Foreword: Abbr.
• Bk. intro
• Non- or un-: Abbr.
• Choice, for short
• Paper or plastic, e.g.: Abbr.
• Book intro (abbr.)
• Paper or plastic, e.g. (Abbr.)
• Aisle or window, e.g.: Abbr.
• Lit. intro
• Start of a bk
• "Mis-" or "dis-" (Abbr.)
• Choice: Abbr
• Fave option