Open-Book Exams: How to Prepare When Notes Are Allowed

An open-book exam sounds like a relief. You may bring your lecture notes, the textbook, sometimes even a laptop. Plenty of students hear that and quietly decide to study a little less. That decision is exactly what this format tends to punish.

When everyone in the room has the book on the desk, the book stops being an advantage. What separates the results is something else: how quickly you find what you need, and whether you understand the material well enough to use it on a question you have never seen before. This article walks through how to prepare for that, what belongs in your materials, and where students usually lose points.

Why open-book exams are rarely the easy option

Examiners know you can look things up, so they stop asking for things that can be looked up. Instead of “define X” you get “apply X to this case”, “compare these two approaches” or “decide which method fits and justify it”. No page in your folder answers that directly. You have to build the answer yourself.

The second difficulty is time. Every lookup costs minutes, and those minutes add up fast. A student who needs the book for every question will usually run out of time before running out of material. Think of the manual in a cockpit: it is on board for the rare procedure, but nobody flies an approach by reading it page by page.

Find out what “open” means for your exam

Open-book is not one fixed format. Depending on the course, it can mean:

• only your own handwritten notes
• any printed material, but no electronic devices
• a laptop with your files, but no internet
• a take-home exam where almost everything is allowed except working with other people

Some rules go into detail: whether you may write in the textbook, whether sticky tabs are allowed, whether AI tools count as a permitted aid. Check the official exam information or ask the examiner directly. Do not rely on what last year’s students remember, because rules change, and bringing an aid that is not permitted can be treated as an attempt to cheat.

Study as if the book were closed

This sounds contradictory, but it is the core of good preparation. The concepts that appear in almost every question need to live in your head, not in your folder. If you have to look up what a basic term means, you cannot use it to reason about a case.

So prepare the way you would for a closed exam: close your notes and explain a topic out loud, work through problems without help, test yourself on the connections between topics. The book is your backup for details you should not have to memorise, such as long formulas, the exact wording of definitions, tables, legal provisions or reference values.

A useful question while revising: “Would I have time to look this up during the exam?” If the honest answer is no, it belongs in memory.

Build a reference you can navigate under pressure

The value of your materials depends on how fast you can use them. A thick stack you barely know is slower than a thin one you built yourself.

• Your own index. A single page at the front that lists topics, key terms and where to find them. This page often matters more than everything behind it.
• Tabs with a simple system. One colour per topic area is enough. Ten colours with separate meanings become noise when you are stressed.
• One overview page per topic. Core formulas or rules, when they apply, and the typical mistakes. Short enough to scan in seconds.
• Worked examples. Annotated solutions to the kinds of problems that come up are often more useful than long theory summaries, because the exam asks you to do something, not to recite.

If your course allows the textbook itself, mark it sparingly. A book with every second line highlighted tells you nothing.

Rehearse with the materials you will actually use

Take past papers or practice questions and work through them under exam conditions: timed, with exactly the folder you plan to bring. You will quickly notice where you search too long. Each of those moments is a hint to improve your index or your overview pages.

Keep a short list of what you had to look up. If the same topic appears on that list again and again, it is a sign you have not understood it yet, and more tabs will not fix that.

For digital open-book exams, rehearse the technical side as well. Does full-text search work in your files? Can you open everything offline? Is your battery or charger sorted?

Plan your time on exam day

• Read all questions first and note which ones you can answer without help.
• Answer those first. They build momentum and leave the remaining time for the harder ones.
• Mark the places where you need to check a detail and do the lookups together, rather than interrupting every answer.
• Do not copy long passages from the book. Examiners want your reasoning. A short, correctly quoted definition is fine; the marks are in what you do with it.
• Keep a few minutes at the end to check that every question has an answer.

When the open book will not save you

An honest point: if you have not understood the material, no folder will rescue you in the exam. And if the exam is close and time is short, spend what you have on understanding the central topics and practising questions, not on making your folder look perfect. Designing colour-coded tabs can feel productive while you avoid the hard part.

On the other hand, if you have worked through the content properly, an open-book exam can be a fair format. You are tested on thinking, not on how many details you can hold at once, and your preparation shows directly in the result.

Short checklist

• Rules clarified in writing: which aids, which format, which devices
• Core concepts learned as if the exam were closed
• An index page and one overview page per topic
• Worked examples for typical question types
• At least one timed practice run with your real materials
• A plan for the exam: easy questions first, lookups bundled, time left for checking