Almost Perfect is the story of WordPerfect (a word processor for personal computers) as told by Pete Paterson, owner of a failing drapery business who jumped onto selling software, head it's Sales and Marketing division and drove annual sales to half a billion dollars in a span of a decade. The entire book is available online.
Although I found the book to be dry and depressing, I feel it has good lessons for anyone getting into Software Product development. It also tracks the initial years of the PC Revolution - the challenges and opportunities it created. It was a roller-coaster ride that helped some companies and products make billions while others like WordPerfect perished.