The content of UNIX for the Hyper-Impatient came from Addison-Wesley's book UNIX for the Impatient (http://www.awl.com/cseng/authors/abrahams/). The DynaText browser came from Inso Corporation (http://www.inso.com/). Quickscan Electronic Publishing, Inc. (http://www.qsep.com/) used DynaText and the content from UNIX for the Impatient to create UNIX for the Hyper-Impatient. Although UNIX for the Hyper-Impatient is called a book and sold in a book store, it is a software product.