01
Real start-up investment
What you actually have to spend before the first client, permits, equipment and registration included.
Collection 03
Business and economics
Three guides covering the whole journey of someone deciding to work for themselves: what to start, how to start it and how to keep the finances standing meanwhile. No get-rich-quick promises, and the figures on the table.
3 guides200 businesses analysedSpain · LatAm · Mexico eds.2026
The argument
A business stands on numbers, not on enthusiasm
Most entrepreneurship books stop at motivation. This collection starts where they finish: how much it costs to get going, what you can charge, what qualifications it demands, which expenses never appear in an initial plan, and what happens to your home once you turn it into your workplace.
02
Market rates
The price ranges the market accepts today, not the ones you would like to charge.
03
Hidden costs
Self-employment contributions, insurance, software, travel, unpaid invoices and non-billable time. The line item that sinks the most projects.
04
Home-use traffic light
Whether the activity fits your home, needs adapting it, or simply does not fit. A criterion almost nobody documents.
05
Resistance to AI
How much of that activity can be automated over the next few years. A business that works today may not work in 2030.
06
Financial buffer
How many months you can hold out with no income. The variable that decides whether a project ever gets off the ground.
The journey
From the idea to the bank account
The three books are meant to be read in sequence, although each one stands on its own. The first answers what; the second, how; the third, with what.
Starting a business is not a bet: it is a sequence of decisions that can be documented and reviewed.
Emprende tu proyecto grew out of a real experience of business failure. That is its advantage: it explains what those who made it did, and what those who did not do, without airbrushing the second part.
- Choose the activity Los 200 mejores negocios desde casa works as a reference catalogue: search by sector, compare investment against rates, and rule out quickly whatever does not fit.
- Turn it into a company Emprende tu proyecto supplies the parts of the business plan, the forecast and the administrative steps.
- Keep the finances standing Cómo gestionar mi economía personal covers budgeting, debt, the emergency buffer and prudent investing while the business matures.
- Review and adjust All three books insist on the same point: a forecast that is not reviewed every quarter is an illusion in spreadsheet format.
The books
Three guides, one journey
Los 200 mejores negocios desde casa
Spain 2026 edition · A practical guide to working for yourself
Two hundred activities that can be started from home, each with its own card: estimated investment, market rates, qualifications required, hidden costs, a traffic-light rating for using your home, and an assessment of how well it resists automation by AI.
Organised by sector —professional services, trades, digital, training, care and more— with an opening chapter on what you need to settle before choosing anything.
Emprende tu proyecto
From the business idea to the company, step by step
Written for someone who already has an idea and needs to know what steps to take to turn it into a company with as little uncertainty as possible: the parts of the business plan, forecasting results before you start, resources and key decisions.
Written from first-hand experience of building a start-up that did not work, it covers both the successes and the mistakes that led to the failure.
Cómo gestionar mi economía personal
A practical guide to reaching financial stability
The basics of household economics explained without financial jargon: budgeting, spending control, debt, the emergency buffer and prudent investing, with complete example financial plans and the sources of information to rely on.
Keep exploring
Once the numbers are done, what remains are the decisions no spreadsheet settles. That is what the fiction is about.