// Comparison

À la trace vs RGPD et droit des données personnelles: Which Should You Read?

Two cybersecurity books on Privacy, compared honestly: who each is for, what each does best, and which to read first.

Beginner
4/52020
À la trace

Enquête sur les nouveaux territoires de la surveillance

Olivier Tesquet

An investigative map of modern surveillance — from data brokers and facial recognition to contact-tracing — charting how continuous digital tracking became normal, by a French tech journalist.

Intermediate
3/52021
RGPD et droit des données personnelles

Fabrice Mattatia

A complete French manual on data-protection law under the GDPR and the 2018 loi Informatique et Libertés — obligations, rights and how to comply — by an engineer and doctor of law.

Read this if

Readers who want a sharp, up-to-date investigation into the surveillance economy and state tracking, with concrete cases rather than abstraction.
DPOs, developers, managers and students who need a clear, structured guide to GDPR obligations and French data-protection law in practice.

Skip this if

Anyone after technical countermeasures; it's surveillance journalism and analysis, not a privacy how-to.
Readers outside the EU legal context, or anyone wanting security technique; it's a legal-compliance manual, and law changes, so check the latest edition.

Key takeaways

  • A 2020 investigative cartography of the new surveillance — data brokers, facial recognition, tracing.
  • Tesquet reports with specifics, making the abstract surveillance economy concrete.
  • Read for the landscape and the cases; pair with Nitot/Untersinger for what to do about it.
  • A clear, complete French manual on GDPR and data-protection law for non-lawyers.
  • Mattatia is both an engineer and a doctor of law, so it bridges technical and legal worlds.
  • Law evolves: use the most recent edition and verify against current CNIL guidance.

How they compare

We rate À la trace higher (4/5 against 3/5 for RGPD et droit des données personnelles). For most readers, that means À la trace is the primary pick and RGPD et droit des données personnelles is a useful follow-up.

À la trace is pitched at beginner level. RGPD et droit des données personnelles is pitched at intermediate level. Read the easier one first if you're not yet comfortable with the topic.

À la trace and RGPD et droit des données personnelles both cover Privacy, Policy, so reading them in sequence reinforces the same material from different angles.

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