Published by Élodie Maurel-Lescure

Cahierdeprepa: the essential tool to organize its class prepa in 2025

The Cahierdeprepa centralises the organization in preparatory classes with a free platform and a paper notebook. Follow-up of notes, glues, calendar and documents for teachers and students.

19 January 2026

prepa desk with notebook and computer
prepa desk with notebook and computer

Structure its progress inPreparatory classeswithout sacrificing its creativity requires a subtle balance, and theprepa notebookquickly impose as a real resource. Some rely on reassuring paper, others on the digital platform that brings everything together, each one finds its bearings between demand and flexibility. Over the course of my accompaniment, I observed that tailor-made options release energy, increase motivation and foster confidence.
To rely on methods adapted to each rhythm, it is to offer everyone the best conditions of success while cultivating originality, in a benevolent atmosphere that puts every step forward.

What is a prepa notebook?

manuscript file planning numerical prepa notebook

The « prepa notebook » is really a pillar of the preparatory class organisation (CPGE). Whether it's a paper version or a free digital platform, each tool is designed to meet the demands of the fast pace in preparation. At a time when close to900 classesadopted the platform from the beginning of 2025 (113 millionIt is often found that this tool centralizes the organizational dimension of CPGE life.

In practice, the paper book remains attached to tradition: programs, revisions, glue reports (these weekly orals, so dreaded!), schedules... Since 2011, the free digital platformPrepa bookallows you to group all this online, accessible via a simple connection, without any imposed software. We then find the structure of the notebook, enriched with interactive modules: shared calendar, note tracking, glue management, document repository, automatic notifications, and even insertion of LaTeX equations. This is also why teachers and students take advantage of centralization to focus their efforts on the essential – learning with less logistical pressure.

During my workshops, some students move from a scattered agenda to a clear organization: the improvement of daily life is palpable as soon as the mental load decreases thanks to centralization (a colleague recently told how fluid this change had been the group discussions).

Paper and digital: two complementary uses

The choice between the paper book or the platform reflects both personal preferences and context. In preparatory classes, the paper offers a reassuring experience, that of handwritten gesture, spontaneous annotations and the connection with its own rituals. On the other hand, digital technology – which was affirmed after the health crisis and the rise of distance education – provides access everywhere, an irreproachable organisation and effective synchronization with the teaching team.

  • Paperbookmaintain a personal relationship: one writes, draws, reinforces his key ideas through manual exercise.
  • Digital platform (https://cahier-de-prepa.fr) gathers planning, glues and documents, promotes collaborative work and facilitates the flow of information.

Is it relevant to use both? Many students, from what I have seen, combine the approach: manual writing to memorize, digital organization to avoid misleading. A trainer suggested that mixed use often avoids memory holes and involves the team faster. Each finds its own strategy, and the examples are almost as numerous as the prepa profiles.

Key features of the digital platform

tablet smartphone planning prepa notebook

Are you wondering about the added value of a digital tool to lighten daily life? Here are the main features that make CPGE management evolve: the platform supports all stages, from glue tracking to customizing roles, document sharing and scheduling.

Centralization calendar, glues, documents and notes

The main advantage lies in the concentration of all tools in the same space. End endless searches on Sunday evening on e-mails or scattered folders! We now have access to a collective agenda, the management of glues (the famous oral ones), the synthesis of content, the deposit of audio/video documents, and the record of absences and notes. In March 2025, the service reached an impressive peak of14 millionThis is a good example of its success.

  • Track the schedule and manage glues:Everything is integrated to save time during preparations.
  • Personalized Role Management:Clear distribution between pupils, teachers and colliers.
  • Organized deposits:group files, quick access to content, including recorded audio or video points.
  • Entry of notes and absences:centralisation and traceability for the teaching team.

I remember a student who often missed his glues due to lack of alert: the passage on the platform, with automatic notifications, really changed its regularity. Sometimes it is this detail that makes the difference.

Advanced technical support (LaTeX, Python, Responsive)

For students in science fields, the platform integrates suitable tools: inserting LaTeX equations, executing Python files directly in the browser. The whole is accompanied by a display designed for mobile and tablet, dark mode, export/import content... Details that make use more fluid, which lifts the technical brakes.

  • Input of equations or formulas:LaTeX button intuitive, accessible even for novices.
  • Group download and RSS feed:quick access to documents, with bulk export if necessary.
  • Integrated Python Execution:no installation required, save time for development of homework or TP.

A shared tip: a student claimed to earn about 20 minutes a week thanks to the LaTeX integration, which simplifies the formatting of homework. It is often thought that digital is time-consuming, but here it brings measurable efficiency (workers also report less errors in corrections).

Good to know

I recommend you take advantage of the LaTeX and Python integration that saves time and facilitates the shaping or execution of complex calculations, without additional installation.

Benefits: organization, free, GDPR

Behind each technical choice is a goal of efficiency and safety. The majority of both students and teachers prefer the free model, without ads, where data remain confidential.

Simplicity of access and centralisation

Just create your class online via an email address, then share a unique link with the entire team: no installation, no complex settings to plan. Statistics speak: in September 2025, the platform gathers1.7 millionof visitors, revealing a wide adherence to the tool.

  • Shared access:only one link to be spread throughout the class, no one is left behind.
  • Intuitive navigation:calendar, glues, note and document management are accessible without taking the lead.
  • Multi-device synchronizationand archives: find your content everywhere, even long after the contest.

Some are hesitant about digital; However, even the most reluctant discover that the take-over takes place in a few moments. One teacher testified: "I didn't think it would be so simple," proof that apprehension quickly falls after first use.

Confidentiality guaranteed, open-source and without advertising

One of the main strengths of the Prepa Paper is the strict adherence to the GDPR: no data reused for commercial purposes, no advertising, and code available in full transparency (25 000 linesfor version 12). For the most curious, it is possible to check the source code at any time (no barrier to access).

  • No advertising, no tracking: serene navigation and user respect.
  • Private data, never resold: confidentiality guaranteed for all profiles.
  • Open-source code, examined freely: Everyone can check the operation, a guarantee of opening.

Concern about confidentiality sometimes persists, but the popularity of the site (classified)974thin France, according to Similarweb 2025), shows strong confidence and more than positive reception in the educational world.

How to register and use Prepa Book?

Are you wondering about how to register, fearing to miss a step? Rest assured, the whole process is fast and is open to all profiles: teachers, students, collators – without prior technical notions.

Simple registration, step-by-step guide

Create your class is done in a few clicks: name the class, register your email, and then share the link with your colleagues or students. The device is, in fact, designed to remove obstacles:

  • Registration via mail: no password difficult to remember.
  • Dissemination of the dedicated linkEach member can access by email, instantly.
  • Direct use on all mediaThe platform works as well on computer, mobile or tablet.

During the workshops, the arrival on the platform regularly arouses an amused reaction: "Is that all? We don't have anything to install?", showing that simplicity is really on the agenda even for the least technophiles.

Errors to avoid, tips to start

The temptation exists to deposit all its documents from the start, but it is best to organize the content week after week. A wise reflex: plan a regular slot to update your calendar, and limit the display to really useful files. Returns show that a progressive structure helps not to disperse.

  • Do not overload the class: Stay selective on modules and documents visible simultaneously.
  • Adapt roles: configure accesses according to each subject or need.
  • View Support or FAQin case of blocking: the help is accessible directly on the platform.

A common question is about export: all the content in your space can be downloaded or saved offline, which reassures the data's sustainability (some prefer to keep an archived copy when they leave the class for example).

A massively adopted solution

At each re-entry, the impact is visible: the Prepa Cahier actually equips close to900 classes, with a record audience of17 millionpages consulted in September 2025. Teachers and students agree that the tool simplifies the organisation and encourages involvement. One teacher recently said that the interface had enabled him to better monitor the progress of his classes.

For optimal organisation in prepa class, combine a structured notebook with powerful tools such asHyperplanning: central tool to organize your time schedules at universitycan make all the difference.

For optimal management of your prepa communications, discover also theNancy-Metz academic messaging: quick access, guide and essential tips.

To better anticipate your organization, discoverhow to see your class in advance: all reliable solutions for the new yearand start the year calmly.

Success Framework and Community

Support for success also requires recognition: the platform is regularly included in CPGE guides and is the subject of discussions on specialized forums. A professor of mathematics described having left his institutional ENT in favour of the Cahier de Prépa to benefit from a true accompaniment. Word of mouth contributes greatly to community growth, fuelling the constant evolution of the tool.

  • Widespread adoption : 113 millionof pages viewed in 2024-2025, the progression is relatively clear.
  • Recognition by professionals: Positioning asserted in the CPGE sector.
  • Direct support by e-mail and in-depth guides: documented platform, reactive support.

Over the course of the testimonies, the community consolidates: exchanges of tricks, feedbacks that fuel the quality of the service. Even the new classes feel quickly integrated, as the model promotes a virtuous circle of mutual aid and regular participation.

Comparison: paper vs. digital, ENT alternatives

Each return brings back the same question: should we turn to the digital whole, keep the paper, or press the ENTs of the establishment? To help clarify this, this table summarizes the highlights.

Criteria Paper Prepa Book Platform Traditional ENT
Individual organization Manual, customizable Centralized, structured, collaborative Standardised, sometimes not flexible
Glue management/agenda Fill by hand Automatic modules, reminder, sharing Often limited function for glues
Document sharing Paper format, photocopies Any type, instant, multi-support Import system sometimes complicated
Confidentiality/security 100 % private GDPR, open-source, no advertising Depends on the provider, frequent advertisements
Popularity in CPGE Traditional, common use 900 classes in 2025, 113M pages consulted Less adapted CPGE, generalist

To take into account: the choice depends in large part on the profile, but the transition to the Digital Prepa Cahier attracts ever more users thanks to its practical and intuitive side (a teacher compared this transition to the abandonment of post-its for a really smart app). The paper + digital association remains widespread, validated by many professionals to optimize both logistics and memory.

Practical FAQ – Uses and Tips

What exactly is a prepa notebook?

It is an organizational medium, either manual or digital, designed to facilitate revisions, glues and calendar monitoring, while bringing together the entire class life in one place.

How to sign up for the Prepa Book platform?

Registration is done directly on https://cahier-de-prepa.fr by email, with the creation of a class and sharing the link dedicated to the team. Access guaranteed on all current devices.

Is it free and secure?

The platform is completely free: no advertising, data protection, open code and GDPR compliant.

Difference between paper and digital version?

The paper version promotes customization but also gesture, while the digital solution centralizes and facilitates sharing, providing a flexible framework better adapted to the pace of the CPGEs.

How to integrate LaTeX or manage glues?

A specific button in the platform allows you to enter equations. Glues are programmable in the shared calendar, with automatic tracking and notifications.

Can content be exported or imported?

All available resources can be exported or imported, which facilitates archiving or switching to another tool as needed (some students appreciate this flexibility at the end of the year).

Immediate trial and access to the community

Want to optimize your organization in CPGE? Enjoy a free trial onprepa.fr notebook, download the open-source code or request support now. Detailed guides, a reactive FAQ and email support are available at any time. Everyone finds their way forward, and can invest in the community without wasting time in secondary tasks.

Updated on 23 March 2026

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Élodie Maurel-Lescure

I am Élodie Maurel-Lescure, a plastic arts trainer passionate about the transmission of creative momentum to all profiles.

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