# More Docs See also: Ledger's informative [manual](http://ledger-cli.org/3.0/doc/ledger3.html) [Non-Profit Accounting With Ledger CLI, A Tutorial](https://gitorious.org/ledger/npo-ledger-cli/source/npo-ledger-cli-tutorial.md) [Accounting For Dragons](http://podcastle.org/2009/10/09/pc-miniature-38-accounting-for-dragons) - essential tips Wikipedia:\  [Accountancy](https://en.wikipedia.org/wiki/Accountancy)\  [Bookkeeping](https://en.wikipedia.org/wiki/Bookkeeping)\  [Double-entry bookkeeping system](https://en.wikipedia.org/wiki/Double-entry_bookkeeping_system)\  etc. WikiWikiWeb:\  [Double Entry Bookkeeping](http://c2.com/cgi/wiki?DoubleEntryBookkeeping) - software developers discuss it Similar software:\  [ledger](http://ledger-cli.org), [UMM](http://hackage.haskell.org/package/UMM), [penny](http://hackage.haskell.org/package/penny), [beancount](http://furius.ca/beancount/), and [more](https://github.com/ledger/ledger/wiki/Ports)