Choosing a steno theory
There are many steno theories that encompass the rules you use to convert words to steno strokes.
Almost all English language steno theories are derived from the original Stenotype theory devised by Ward Ireland. They all share the same keyboard design and basic method of representing the sounds. Theories mostly differ by how much rote memorization is required. Typically, memorization heavy theories are faster.
The default theory that comes with the Plover app (called Plover theory) is Mirabai Knight’s own personal theory that she uses for stenocaptioning—it is very fast, as a result. However, there are a lot of odd inconsistencies that may not make it a great choice for beginners. Using it requires a lot of personal changes and additions very early on in the learning process.
One alternative to Plover is Lapwing theory. It was created by a community member dissatisfied with the unnecessarily steep learning curve associated with Plover theory. It has a comprehensive wiki that covers a wide range of content along with exercises to practice concepts. Many regard it as easier to learn than Plover theory due to having more consistent rules. For details on how to set up and learn Lapwing theory, see the Lapwing for Beginners Wiki.
We recommend learning either Plover theory or Lapwing theory.
Other theories also exist, but either cost money, or are not supported by Plover. Ultimately, it does not matter which theory you choose when it comes to speed—it is always possible to add more memorization into the theory you’ve chosen to squeeze out more speed. Furthermore, we do not recommend spending money on a theory until you’re certain you like stenography and see a clear reason to switch.