Essays & Society

FRENCH ONLY
ROBOTIQUE HUMANOÏDE : Prospective d’une révolution technologique
A major prospective work on humanoid robotics, embodied AI, industry, defence, sovereignty and space exploration. French edition currently available.
Open the French book page →
FRENCH ONLY
Exception – Exclusion
An English presentation of Exception – Exclusion, a personal and institutional journey through ambition, exclusion, public service, work and the transformation brought by artificial intelligence.
FRENCH ONLY
FRENCH ONLY
What If Knowledge Went Dark?
An English presentation of What If Knowledge Went Dark?, examining the fragility of human knowledge, lost skills and the growing dependence on digital systems and artificial intelligence.
FRENCH ONLY
FRENCH ONLY
AI: How to Transform France
An English overview of AI: How to Transform France, a reform program using artificial intelligence to simplify administration, improve public services and strengthen national efficiency.
FRENCH ONLY
ENGLISH EDITION
The Limits of Democracy
An English presentation of The Limits of Democracy, exploring representation, political selection, institutional incentives and the gap between democratic ideals and actual decision-making.
ENGLISH EDITION
FRENCH ONLY
The Retirement Trap
An English presentation of The Retirement Trap, explaining demographics, pay-as-you-go financing, long-term sustainability and possible structural reforms of the French pension system.
FRENCH ONLY
FULL EDITION IN FRENCH
Plan de Rupture — The Foundational Dossier
English overview of a free French dossier on State reform, public spending, administrative simplification and digital transformation.
FULL EDITION IN FRENCH
FRENCH ONLY
Where Did Our Money Go?
A documented inquiry into public spending, overruns, failed controls and the mechanisms that allow responsibility to dissolve between institutions.
FRENCH ONLY
FRENCH ONLY
The Organized Decline of France
An English presentation of The Organized Decline of France, examining public policy failures, institutional drift, economic weakening and the mechanisms behind national decline.
FRENCH ONLY
FRENCH ONLY
Our True Origins?
An English presentation of Our True Origins?, exploring human origins through paleogenetics, archaeology and the evidence provided by ancient DNA.
FRENCH ONLY🚀 Mars Universe
Arcadia Cycle — prospective science-fiction novels
ENGLISH EDITION
Arcadia — Manual of the First Martian City
The English technical companion to I Walked on Mars: a systems study of siting, life support, habitats, logistics, safety, industry and Martian governance.
ENGLISH EDITION
ENGLISH EDITION
I Walked on Mars — Book 1: The Great Departure
The first novel in David Salvan’s realistic Mars quadrilogy: selection, training, human relationships and the irreversible departure of the first settlers.
ENGLISH EDITION
ENGLISH EDITION
I Walked on Mars — Book 2: Deployment
Book 2 of David Salvan’s Mars quadrilogy: landing at Arcadia Planitia, deploying life-support systems and building the first year of a permanent human settlement.
ENGLISH EDITION
ENGLISH EDITION
I Walked on Mars — Book 3: They Are Coming
Book 3 of David Salvan’s Mars quadrilogy: Arcadia expands, new settlements appear and survival becomes inseparable from geopolitics, authority and solidarity.
ENGLISH EDITION
ENGLISH EDITION
I Walked on Mars — Book 4: Enough Is Enough!
Book 4 of David Salvan’s I Walked on Mars series: the political, social and strategic conclusion of Arcadia’s transformation into a distinct Martian society.
ENGLISH EDITION📸 Author’s Vision Collection
Photo books that give faces and settings to the novel universe
ENGLISH EDITION
I Walked on Mars — Book 1 — The Author’s Vision
An illustrated companion to the first novel, showing selection, training, the formation of the crew and the human relationships that precede departure for Mars.
ENGLISH EDITION
ENGLISH EDITION
I Walked on Mars — Book 2 — The Author’s Vision
A visual journey through landing, deployment and the first year of building a permanent settlement on Mars.
ENGLISH EDITION
ENGLISH EDITION
I Walked on Mars — Book 3 — The Author’s Vision
The illustrated author’s vision for I Walked on Mars — Book 3, following the expansion of Arcadia, the arrival of new settlers and the growing geopolitical tensions around Mars.
ENGLISH EDITION
ENGLISH EDITION
I Walked on Mars — Book 4 — The Author’s Vision
The visual conclusion of the Arcadian cycle, from public institutions and family choices to strategic confrontation and the emergence of a Martian people.
ENGLISH EDITIONChoose a book by the question you want to explore
A useful bibliography should do more than sort books by date or collection. It should help readers start from their own question. Someone wondering about public spending does not begin in the same place as someone trying to understand democracy, pensions, artificial intelligence, the loss of knowledge or the settlement of Mars. This page therefore connects the books by the problems they explore, so readers can build a coherent path without already knowing every title.
The essays about France form a connected body of work: one examines the architecture of the State, another public spending, another pensions, another industrial sovereignty, and another the uses of artificial intelligence. They are not presented as identical answers. Their value lies precisely in allowing several angles on the same crisis to be compared: institutions, public money, technology, industry and the collective capacity to decide.
The Mars universe follows a different logic. The novels portray a society being built, while ARCADIA and the illustrated volumes explore architecture, technical choices and the author’s vision more directly. Readers can therefore enter through the story, engineering or imagery, then move between formats without the bibliography confusing their purposes.
- Reform the State and understand public finances: start with Plan de Rupture, then Where Did Our Money Go? and AI: How to Transform France.
- Understand political mechanisms: The Limits of Democracy complements the site’s institutional dossiers.
- Explore the social pact and generations: The Retirement Trap connects demographics, financing and collective choices.
- Examine industry and sovereignty: The Organized Decline of France can be read alongside the economic dossiers of the France portal.
- Explore Mars: start with I Walked on Mars for the story, or ARCADIA for the technical approach.
Books extended by a documentary website, not replaced by it
Delta-Sierra is not intended to reproduce commercial books for free. The site publishes standalone dossiers, explanations, calculations, sources and context that help readers understand a subject before deciding whether to buy a book. When free reading has explicitly been made available for a work or public edition, it is clearly identified; otherwise, excerpts remain limited and previews are used only to present the structure and style.
This separation protects both the editorial value of the books and the public usefulness of the site. A page devoted to a book should answer questions an Amazon listing does not: why the book exists, which debate it enters, which hypotheses it examines, who it is for, how it connects with other texts, and which resources on the site extend the discussion. Amazon remains the purchase channel; Delta-Sierra provides the intellectual context.
The links work in both directions. France chapters point to books when they genuinely deepen the subject, and book pages point back to the corresponding public dossiers. This architecture avoids repetitive sales prompts: a book appears where it is relevant, like a bibliography, while readers can continue exploring the topic freely through the France knowledge base.
Plan de Rupture: read the foundational dossier for free
The central page brings together the free book, the summary, the brochure and the print edition.
