12 sales techniques 11 scientific topics Graham Hulsebos
My method: sales is a science, not a coincidence
He who tells loses control. He who asks steers the conversation. That is not an opinion, that is the science behind every sales conversation I have analysed, trained and proven in 30 years. Not in theory, but in practice, with thousands of salespeople, across dozens of sectors.
Does this sound familiar in your team?
Your team works hard. The conversations go well. And yet deals are left on the table that really should have closed. Who wouldn't want to know why, and how you solve that structurally? What would it deliver for your organisation if every conversation ran consciously, not on intuition but on system? The question is not whether your team can sell. The question is whether your team sells on intuition or on system.
The system
I have translated 30 years of experience into one closed system: 12 sales techniques and 11 scientific topics. No motivation, no feeling, no coincidence. Those who do not give their salespeople this system structurally leave results on the table, day after day. Those who master the system steer every conversation consciously, close every closable deal, and build customers who never leave.
The 12 sales techniques
Who wouldn't want to actually close every closable deal, without pressure, without a discount, without hoping for a yes? These are the tools with which I close every commercial gap in an organisation. No single technique makes the difference, the system makes the difference. Every technique reinforces the others.
What does it deliver when your team knows how to technically increase order value without triggering resistance? What happens to your revenue when hidden needs in your existing customer base are structurally activated? From the first contact to the signature. From the signature to the recommendation. From the recommendation to the customer who never leaves you.
The 11 scientific topics
Selling is biology. Selling is psychology. Selling is the science of human behaviour. A large part of every sales result has nothing to do with what you say. It has to do with how your customer's brain responds to signals neither of you consciously experiences.
Who wouldn't want to know why customers trust, and how you technically steer that process? What does the science prove about how people decide? When do they trust? When do they doubt? How do you recognise when someone is not telling the full truth, and how do you respond to that strategically? The 11 scientific topics give your salespeople an edge that no product knowledge, no discount and no pitch can ever compensate for.
The laws of the trade
Success in sales is no coincidence. It is the daily application of the rules of the trade. Whoever does not know the 10 fundamental principles and 6 guiding principles sells on feeling. Whoever masters them sells on system.
Do you know the fundamental principle that contact with an existing customer every 30 days, always with a relevant reason, delivers more than any acquisition campaign? The difference between a good salesperson and an excellent one is not talent. It is the discipline to consciously apply the rules of the trade every day.
The circle of success
My method works because it is a closed system. Not a one-off training that gets forgotten, but a three-step approach that permanently changes behaviour.
First the commercial baseline assessment, a free test that determines exactly where your team stands now and where the biggest opportunities lie. Then tailoring, the training fully tailored to your market, your product and your customer. No standard programme, an exact solution that is immediately recognisable to your salespeople. Then embedding, anchored through AI Sales e-learning, assessments and the 5-step plan. So the system does not remain a training but becomes a habit that delivers results every day.
Most trainers stop where it really begins, after the training. I start there.
What others say
"Super interesting training with a lot of practical tools for our sales process. Great location and a very personal approach to delivering the information."
Kim De Kloet, Google review
"No boring theory, but clear explanations with good examples." Tanja Dahm describes in her Google review how she learned a lot about sales techniques and how she could apply them directly in practice.
"The training was well-structured, highly practical, and filled with useful tips that can be applied immediately."
Stano Jancus, Google review
View all reviews on Google, rated 4.9 stars, or the reviews on Springest, rated 9.2.
How an AI language model rates my method
Curious how my approach compares to other methods in the Netherlands, I asked ChatGPT exactly that. The answer described my method as one of the most comprehensive and results-oriented approaches in the Netherlands, because of the combination of proven techniques, the integration of science and practice, and the way behaviour changes sustainably through embedding. An AI answer is not independent research or an official verdict, but it is an interesting outside perspective on how the method comes across.
One question
How many deals does your team close today that it will also close tomorrow, consciously, repeatably and on system? If the answer does not satisfy you, this is the conversation that changes that.
Take the free commercial intake test first and discover where your biggest sales potential lies. Or plan a conversation directly. Already know exactly what you are looking for? Then you can also request a quote. Would you rather get in touch directly first? Call 036 2340501 or email [email protected].
How I work
My method is universally applicable and is delivered in the format that fits your situation.
- In-company: fully tailored to the specific challenges of your organisation
- Classroom: personal training in small groups of maximum 8 participants
- Virtual online: interactive live sessions via Google Meet or Microsoft Teams, with the same depth as in-person
- E-learning: 24/7 access to all modules via my AI Sales e-learning with digital twin
- Individual 1-on-1: maximum depth and personal guidance
Questions? Graham AI is available 24/7
Do you see the green icon at the bottom right of this page? That is Graham AI, my personal AI chatbot available day and night. Ask your question about my method directly and get an immediate answer, no waiting time.