The question is not 'which one is better' but 'where are customers in their buying journey'.
Choose based on the depth of the moment, not based on the desire to say enough. A one-page document for quick touchpoints, sent via email, for you to read in a few minutes. A thicker document is for when you are deeply interested and need specific evidence to persuade the decision-making committee.
This is a question that Sinh Vũ hears very often from those preparing to create a sales document: "Should I make a brochure or a full set?" The answer does not lie in the budget or how professional you want it to look. It lies in one single question: where is the customer in their buying journey?
One-pager (a document summarizing on a single A4 page) and thick documents do not compete with each other. They serve two completely different moments in the decision-making process.
Using the wrong tool at the wrong moment results in failure for both.
Before deciding what to do, you should answer these four questions:
Sinh Vũ sees these three mistakes occurring frequently:
Adding more content does not make it easier for customers to decide. Content must anchor to the purchase the customer is actually making at that moment.
Gartner, The B2B Buying Journey
In the P5 kit (the core sales toolkit), Sinh Vũ clearly distinguishes three items: a one-page introduction, a company brochure, and a comprehensive sales document. None can replace the other.
When starting to create a document set, Sinh Vũ often maps out the touchpoints first: where customers first encounter us, what they do next, and who is involved in the decision. From that map, we then decide which items to prioritize and which can be postponed. This approach avoids creating a pile of documents that are then used incorrectly, wasting money without generating effectiveness.
If you are starting from scratch, Sinh Vũ often recommends creating a one-page document first, as it serves the most common moment. A thicker document can be created later, once you understand what customers are asking most at that stage.
Topic: One-page introduction or a thick document: which one to choose? Sinh Vũ Handbook, sinhvu.com
Select each item you find appropriate, then print or save as PDF to take with you.
If you have marked most of the signs above, this is the time to discuss in more detail. Sinh Vũ can help you review and propose a direction.
Gartner, The B2B Buying Journey: most B2B customers prefer to research independently and have fewer direct interactions with sales; content must stand on its own without requiring explanations from sales. Specific numbers are unverified, leading to qualitative insights.
A 15-page document is suitable when the client is already interested and needs to delve deeper, for example, during the supplier comparison stage or when presenting to a board. The issue lies in the first touchpoint; few people open a lengthy file without a reason. Therefore, create a one-page document to use in those moments, which will then lead clients to the more detailed document when they genuinely want to learn more.
Being brief does not mean lacking professionalism. Being concise in the right places is discipline. Clients are busy and do not read lengthy documents at the initial stage; they skim to decide whether to continue or not. A one-page document does this well. The feeling of unprofessionalism often comes from careless design or messy content, not from length.
Flyers and brochures typically aim for broad brand recognition, used at events or points of sale. The one-pager in the sales kit is more focused: addressing one specific problem the client has, one clear offer, and one next step. Thick documents in the sales kit are persuasive and demonstrate capability, not just for recognition.