Dewey Decimal System Day (Holiday Hoopla 2023)

Dewey Decimal System Day
Holiday Hoopla 2023
Answer	Click to revealGENRE
Statistics
No. solves	69
No. total guesses	125
Links
Puzzle	Link

Dewey Decimal System Day is a logic puzzle from Holiday Hoopla 2023. Its difficulty level is categorized as Medium relative to the other puzzles in the hunt.

The puzzle is presented as a series of images of books on shelves.

Solve Path

Each book has a title and a decimal number below it.

 

The flavor text indicates that "some books are mislabeled." Searching up the titles of some of the books in the puzzle reveals that the book titles are fictitious.

However, it is still possible to infer what the books are about and verify if they are correctly classified according to the the Dewey Decimal System.

Solvers can use various resources to check the category associated with each decimal number. The solution below will use links to LibraryThing.com.

 

Verifying the classification of the books on the first shelf

Book	Title	Dewey Decimal Number	Category Associated with Number	Correctly Classified?
1	There are Three Holes in a Pretzel: An Introduction to Topology	001.98	Conspiracy Theories	No
2	Are You Financially Stable? Introduction to Microeconomics	003.52	Perception Theory	No
3	Two Paradigms of Computer Languages	005.13	Computer Programming Languages	Yes
4	Types of Public Libraries in the US	027.47	Public Libraries in North America	Yes
5	Of Age: Psychological Research on Growing Adolescents	155.51	General Adolescent Psychology	Yes

 

Verifying the classification of the books on the second shelf

Book	Title	Dewey Decimal Number	Category Associated with Number	Correctly Classified?
1	Nonfiction and Education: Effective Use of Literature in the Classroom	174.25	Bioethics	No
2	Books Unearthed: Historical Records of Ancient Architecture	199.66	Philosophy of West Africa	No
3	In God's Name: Religion in the Classroom	200.71	Religious Education, Curricula	Yes
4	The Evolution of Fantasy: Myths and Folklores	248.85	Christian Living for the Elderly	No
5	Shelves of Policies: Democracy in the United States	320.97	Political Situation and Conditions (North America)	Yes

 

Verifying the classification of the books on the third shelf

Book	Title	Dewey Decimal Number	Category Associated with Number	Correctly Classified?
1	Ones and Zeros: The Spread of Digital Information	345.73	U.S. Criminal Law	No
2	That Calls for a Celebration: Social Customs at Mardi Gras	394.25	Carnival Holiday	Yes
3	Match in Meaning: Linguistic Semantics	401.43	Semantics	Yes
4	Their, There, They're: Understanding Grammar	428.24	English as a Second Language - Applied Linguistics	Yes
5	Number Theory: Of Integers and Functions	493.10	Old Egyptian Philology	No

 

Verifying the classification of the books on the fourth shelf

Book	Title	Dewey Decimal Number	Category Associated with Number	Correctly Classified?
1	Category 5: Catastrophic Hurricanes	551.55	Storms	Yes
2	And The Music Played On: A Melodic Journey Through History	567.90	Dinosaurs	No
3	Those Same Differences: American Cultural Diaspora	599.86	Old World Monkeys	No
4	Which Foods Should I Put in My Body? A Guide to Eating Healthier	613.21	Dietaries	Yes
5	Don't Plagiarize: How to Cite Sources Properly	690.83	Conventional Housing	No

 

Verifying the classification of the books on the fifth shelf

Book	Title	Dewey Decimal Number	Category Associated with Number	Correctly Classified?
1	Use the Correct Tools: Guidebook for Household Cleaning	759.03	The Renaissance Period	No
2	Library of Autonomy: The Emergence of Self-driving Vehicles	782.14	Musicals	No
3	Thing of Destiny: Unraveling Themes of Greek Literature	880.93	Themes and Subjects of Greek Literature	Yes
4	Melvil: An Autobiography	880.01	Classic Greek Literature	No
5	Site Seekers: Exploring the Wonders of Manchuria	915.18	Geography of Manchuria and Travel in Manchuria	Yes

These letters spell out the answer Click to revealGENRE.

Puzzle Elements

 

Dewey Decimal System - This is the theme of this puzzle.

Binary - Extraction makes use of 5-bit binary.