One may also be just curious about some particular area of mathematics. It will be so nice if he can find a comprehensive explanation, requiring only a common background in mathematics.
After all, mathematical ideas aren't and should never be secret. Why all math education materials to be copyrighted and forbiden for reproduction? Fortunately not all the authors think that their books shouldn't be left online for downloading. And many of these books you may find on my page.
Feel free to copy my list.
My page has links only to lawful documents but you may be curious how books may be illegaly found on the Net. The first prerequisite is the existence of programs for OCR (optical character recognition) of which the most important is Acrobat Capture with the full gamma of products of Adobe who established a universal cross-platform document format PDF. This makes possible for everyone to scan books and put them on the Net. Among the alternatives of Adobe the most promissing, probably, is DjVuLibre offering both free and commersial packages for transorming scanned images into DjVu documents, viewer and converters to other formats.
The copyright-brakers often use a more dynamic protocol for file transport than HTTP which is the protocol used for reading this page. People make use of the following USENET groups:
If your browser doesn't support NNTP protocol for reading newsgroups choose
a free usenet client; and if your internet service provider
doesn't carry the above groups try to find them on
an open news server.
There is also a FAQ site (or a better one) for the above groups.
Apart from USENET there are few other possibilities for file shareing. Firstly there exist IRC (Internet Relay Chat) channels for electronic book shareing. Just run an IRC-client and connect to a network such as Dalnet, Efnet, Undernet or Irc.Nullus.Net (with alias irc.bookwarez.com) then join channels with names like #Bookwarez,#Bookz, or #bw. You will see all the information inside. If you want comprehensive information about all IRC networks and their current channels with search and statistics go to irc.netsplit.de/networks
Still another possibility is to use specialized File Sharing software which originated with the famous Napster. Read also an article from the WIRED magazine.
By these means you may find a lot of copyrighted information, although it is unlikely to find many mathematical books in such places. Book pirates are mainly concerned with artistic or technical (computers) literature and don't care much about mathematics or natural sciences.
For sake of well-informedness you are invited to read Prosecuting Intellectual Property Crimes Manual and an article Against intellectual property.
The relevant newsgroups are (use
Google Groups to access text groups (archived also!)):
sci.math.research sci.math.symbolic sci.math.stat sci.math.num-analysis
sci.physics.research sci.physics.cond-matter sci.physics.particle sci.physics.relativity
More to be written..