Literary Machines
Seminal work about HyperText by Ted Nelson, inspired generations of programmers.
Includes the text of the Vannevar Bush essay.
Highly recommended.
You can buy it in print from East Gate: http://www.eastgate.com/catalog/LiteraryMachines.html
You can also read it online (in jfax files!) from Ted Nelson's japanese server: http://www.sfc.keio.ac.jp/~ted/TN/PUBS/LM/LMpage.html
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