Marc Andreessen and Jim Clark

The question of who invented the web browser matters more than most technology origin stories, because the answer shapes how we understand the first dot-com wave and the companies that followed. Simone Payment's dual biography covers Marc Andreessen and Jim Clark — the undergraduate who co-wrote Mosaic at the University of Illinois and the serial entrepreneur who turned that code into Netscape — tracking their partnership from 1994 through Netscape's acquisition by AOL at the height of the browser wars.

The core of the story is a good one. Andreessen, working with Eric Bina at NCSA for $6.85 an hour, built a browser that could display images inline with text — a capability that seems obvious now and was genuinely transformative then. Clark, who had already founded Silicon Graphics, saw what Mosaic could become before almost anyone in business did. Their 1994 meeting, with Clark offering Andreessen the chance to build a commercial browser, is one of the cleaner founding moments in Silicon Valley history: the right technical talent meeting the right financial instinct at the right time. Netscape went from founding to IPO in sixteen months. That IPO — August 1995, stock price doubling on the first day — is usually cited as the moment the internet became real to the financial world.

Payment's account of the Microsoft retaliation is where the book is at its most interesting. Microsoft's decision to bundle Internet Explorer with Windows for free, effectively making it impossible for Netscape to charge for Navigator, is a case study in how incumbents use platform leverage to crush competition. The Department of Justice eventually agreed, though not until Netscape was already finished as a standalone business. What Payment can't do in 112 pages — written for a grade 7-12 audience — is dig into why the antitrust case mattered structurally, or trace the longer legacy: Netscape's source code became Mozilla, which became Firefox, which later established that open-source browsers could compete with platform-bundled ones.

That limitation is real but also fair. This is a library reference book, and it's honest about what it is. The writing is clear, the chronology is sensible, and the subheadings that earned the school librarian's review quote are genuinely useful for a student doing research. What it won't give you is analysis. The business decisions — why Netscape's licensing model was the wrong bet once Microsoft moved, whether Clark and Andreessen could have made different choices — are present as facts but not examined. The book tells you what happened; it doesn't particularly ask why or what it cost.

Andreessen went on to found Loudcloud, later renamed Opsware, which Hewlett-Packard acquired in 2007, and then built one of Silicon Valley's most influential venture firms. Clark turned to healthcare with Healtheon. Neither post-Netscape career gets more than a chapter here, and that brevity feels appropriate — the Netscape story is the reason either of them is interesting, and Payment knows it.

For the audience it's written for, the book works. For anyone past high school looking for a real reckoning with the first browser war, you want something heavier: Michael Lewis's *The New New Thing* covers Clark's personality in more depth, and you'll learn more about the antitrust case from reading the actual DOJ filings than from any book. Take this one for what it is: a competent, accessible introduction to two people who built something the world genuinely needed.