Related Clues:

• Heavy work?
• Weighty works
• Bibliophile's units
• Space hog in a library
• Large book
• "In my opinion ..."
• Dictionary, often
• Books with meat
• Voluminous volume
• The Bible, e.g.
• Books on stands, usually
• They're not quick reads
• Ponderous books
• Big fat book
• Hefty book