Most public libraries now offer apps like Libby or Hoopla . Search for "Corporate Strategy by H. Igor Ansoff." If they don't have the 1965 edition, they will have the 1987 reprint. All you need is a library card.
Ansoff, I. (1965). Corporate Strategy. Harvard Business Review, 43(5), 5-14. ansoff 1965 corporate strategy pdf free
If you are a student, start with your university library’s interlibrary loan. If you are a professional, buy a used copy. And if you simply want the matrix, draw it on a whiteboard right now. The strategy is in the thinking, not just the file. Most public libraries now offer apps like Libby or Hoopla
If you need the original concepts for research or study, here are three legal ways to access the Ansoff 1965 framework without paying $50+ for a rare hardcover: All you need is a library card
I can help you draft a customized matrix for your business, or I can compare Ansoff's model with other frameworks like SWOT and PESTLE to see which fits your needs best. Let me know what you'd like to explore next!