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Weeding: five places to start

The sections where outdated books mislead students most, and how to work through them a shelf at a time.

Weeding a whole collection at once is overwhelming. Starting where outdated books do the most harm gets you the biggest improvement for your time, and gives you a clear story to tell when someone asks why books left the shelves.

1. Computers and technology (000s and 600s)

A book on "today's" software or devices from ten years ago can actively mislead. Technology sections usually need the shortest review cycle in the library. Look for titles that name products, versions or websites that no longer exist.

2. Space and Earth science (500s)

Science moves. Space books are the classic example: anything that still lists nine planets predates 2006. Check for missions, discoveries and data that have since changed, and for photos and diagrams that look dated to students.

3. Health and the human body (610s)

Nutrition guidance, medical advice and health statistics change. Outdated health information isn't just old; it can be wrong in ways that matter to a student.

4. Countries and geography (910s)

Country names, borders, capitals, populations and flags change. A geography title more than a few years old is worth a close look, especially for regions that have seen recent change.

5. Biographies of living people

A biography of a living athlete, entertainer or leader stops at the moment it was written. Students researching that person deserve the rest of the story, and new biographies often reflect more current perspectives.

A simple way to work through a section

1. Pull the list. Use your weeding candidates for one section only.
2. Check each book in hand. Condition, accuracy and appeal matter as much as age. Many librarians use the MUSTIE checklist: Misleading, Ugly, Superseded, Trivial, Irrelevant, Elsewhere.
3. Decide: keep, replace, or withdraw. Note any topic that needs a newer title, so withdrawing doesn't leave a gap.
4. Record it. A short note of what you removed and why helps when someone asks later.

Your district or school may have its own weeding or reconsideration policy. Follow it, and keep the age-and-use reasoning handy. It's the strongest explanation you can give.