How to study for an open-book exam (yes, you still need to)

Exams · 10 min read

By Raul Blanco · Updated 18 July 2026

An open-book exam sounds comforting. The answer is in the notes. Unfortunately, it may be hiding on page 147 while the clock is eating question two and your carefully highlighted textbook has become a very expensive maze.

The key to how to study for an open book exam is to prepare for access and application, not just possession. You need enough knowledge to recognise the problem, a fast route to precise details, and practice using both under the actual time limit.

Read the rules before reading another chapter

“Open book” can mean one printed textbook, your own handwritten notes, any offline file, or selected approved materials. It may still prohibit communication, web access, copied notes or searchable devices. Check the official assessment instructions and ask the module team if anything is unclear.

Also confirm the format, duration, question choice and mark allocation. An essay exam needs argument maps and evidence; a calculation exam needs formula locations and worked examples. Preparation follows the task, not the comforting label.

Learn the core ideas with the book closed

You do not need every date and definition instantly available, but you do need a mental map. Without it, you cannot identify which concept a question is testing or where a useful detail might live.

For each topic, close the material and explain the main claim, process or method in plain language. Sketch relationships and retrieve key steps. The active recall method is just as useful here as in a closed-book exam; the difference is that fine detail can remain in a well-organised reference.

Build an index, not a second textbook

Create a one- or two-page map with topic names, likely question types and exact locations. “Judicial review — grounds and key cases — notes pp. 34–41” is useful. Copying all seven pages onto the index is not.

Use consistent headings and page numbers. For permitted physical books, small labelled tabs can mark major sections if the rules allow them. For permitted digital notes, use clear filenames, headings and tested search terms. Do not assume search will rescue a folder called “final_final_notes2”.

Turn notes into decision tools

Organise material around choices the exam may require. Instead of a folder labelled “Week 6”, use headings such as “When to use this model”, “Arguments for and against”, “Conditions for this formula” and “Common exceptions”.

The question column in the Cornell note-taking method is useful for this. It turns pages into prompts and makes gaps visible before the exam. Add short examples, but resist decorating the archive. The test is whether a page helps you decide or verify something quickly.

Practise application with references available

Use past questions or create exam-shaped prompts. First answer from memory. Then consult the index for exact evidence, a formula condition or a quotation you are allowed to use. This rehearses the correct order: think, locate, apply.

Afterwards, note every slow search. Was the heading unclear? Did you not know which concept mattered? Fix the relevant problem. Better notes solve access failures; more learning solves recognition failures.

Rehearse the real clock

Complete at least one timed section with only the materials and tools permitted in the assessment. If it is an online exam, practise with the same file setup and without casually opening the wider internet. If it is handwritten, practise turning pages and writing under the actual constraint.

Divide time by marks and reserve a final check. The four-week revision timetable places past-paper work early enough to repair what it reveals, instead of discovering your navigation problem the evening before.

Set a search limit for exam day

Read the whole question, identify the task word and sketch the answer before opening anything. If a reference search takes more than a minute or two, mark the gap and continue with what you know. One missing detail should not steal the marks available in the rest of the answer.

Use sources to add precision, not bulk. Copying a long passage rarely answers “evaluate”, “compare” or “apply”. Bring the material into your reasoning and explain why it matters to this question.

Plan the revision, then close the library

Give each topic a learning block, an indexing block and an application block. Put them alongside deadlines as dated tasks in a student calendar so organising notes does not quietly consume every session intended for practice.

Then stop adding resources. A compact, familiar set of notes will usually serve you better than a vast collection you have never navigated. Open book should mean prepared access, not unlimited luggage.

Use the final 48 hours for rehearsal, not reconstruction

Run one last timed answer, then repair only the gaps it exposes. Check that page numbers still match, files open without a connection if required, permitted materials are clearly labelled and any device you are allowed to use is charged. Keep a simple backup where the rules permit one.

Avoid rebuilding the entire note system because a new colour scheme suddenly feels important. In the final evening, familiarity is an advantage. Review the index, retrieve the topic map and stop at a sensible time. The aim is to arrive able to think and navigate, not surrounded by freshly formatted pages you have never used.