Consultative Selling is Mack Hanan’s framework for selling at higher margins by focusing on the business value your solution creates rather than the features it offers. First published in 1970 and updated multiple times since, the book has trained generations of salespeople to move from vendor-level selling (“here’s what our product does”) to consultative-level selling (“here’s how much money your business will make or save by working with us”).
The core idea is that customers don’t buy products. They buy improved business outcomes. A vendor sells a product at the product’s price. A consultant sells an outcome at the outcome’s value. The difference in margin can be enormous. If your software saves a company $2 million per year, selling it for $200,000 is easy and high-margin. But you can only command that price if you can quantify the impact in the customer’s terms.
Hanan provides specific tools for this. His “Profit Improvement Proposal” (PIP) is a one-page document that shows the customer exactly what their financial return will be: the investment required, the revenue gained or costs reduced, and the payback period. The PIP replaces the traditional sales proposal, which typically focuses on product specifications and pricing, with a business case that speaks directly to the buyer’s financial interests.
For founders selling B2B, the consultative approach is especially relevant. Most founders naturally understand their customer’s business better than a hired sales rep would, which gives them a natural advantage in framing conversations around business impact. Hanan’s framework helps you structure that advantage into a repeatable sales process.
The writing is more formal and business-textbook in style than most modern sales books. Hanan’s prose can feel dense, and the frameworks require careful reading to absorb. But the underlying logic is sound and the profit-improvement approach remains one of the most effective ways to sell at premium prices. If you find the original hard going, the 8th edition is the most accessible version. It pairs well with The Challenger Sale, which builds on similar ideas about teaching customers new ways to think about their business.
