System Verilog LRM

System Verilog LRM, as the name suggest, is the definite reference manual for SV. Unlike other standard reference manual, which are too academic or boring to read, this one is a easy to use, easy to read and has large number of examples. The link of which can be easily got by a simple google search.

http://www.vhdl.org/sv/SystemVerilog_3.1a.pdf

There is another reference manual or standard for SV (IEEE 1800) which is pretty much same as the LRM, and you have to pay for downloading it (assuming your organization don't pay $$$ to IEEE for free access to its huge papers and standards)