Secrets of PI Agency Marketing and Management - Paperback

The Art of Surveillance - Paperback

Dipity Literary Magazine Issue #2 (Jurassic Ink Rerun): Softback Economy Edition - Paperback

Riddles: The best riddle book for clever kids - Hardcover

The Modern Riddlers - Paperback

Riddles: Fun riddles for smart kids - Hardcover

Rebuses for Readers - Paperback

Riddles For Kids: 100+ trick questions, math games, short brainteasers and fun riddles for smart kids to enjoy with the whole family - Paperback

Tell Me a Riddle - Paperback

Riddles for Smart People: 100+ Original Puzzles to Solve with Friends - Paperback

Difficult Riddles For Kids: 300 Difficult Riddles and Brain Teasers to Challenge Kids and Families - Paperback

The Wonderful World of dR slide: A Book of Riddles for All - Hardcover

Riddles: Challenging Brain Teasing Riddles For Kids And Adults, Stimulating Mind Growth For Fun - Paperback

Halloween Riddles: #Stumped - Volume 5 - For Teens and Adults - Paperback

Riddle Book For Families: Original What Am I Riddles For Teens, Adults and Brainiac Kids - Paperback

The Mysterious Benedict Society and the Riddle of Ages - Hardcover

Kelly's Heroes: Trivia Quiz Book - Paperback

The Wonderful World of dR slide: A Book of Riddles for All - Paperback

Rhyme or Reason: A Small Town Mystery - Paperback

Old English Riddles - Paperback

I Have the Answer - Paperback

Hunt a Killer: The Detective's Puzzle Book 2: Tricky Ciphers, Mysterious Riddles, and More True Crime-Inspired Logic Games - Paperback

Nelson Riddle: Music With a Heartbeat - Paperback