The Magma handbook is included as part of the standard Magma installation, along with PDF copies of the handbook chapters. They can be found in the doc directory. You can download the latest version of the handbook from the shared section of the downloads page. We encourage institutions to make a copy of the handbook available on their local network.
When running Magma you can call-up the handbook entry for an intrinsic by typing ? followed by the name. For example, to read the handbook entry on SetToSequence you would type:
?SetToSequence