I can tell you what will happen during a reading with me. Hopefully Anna will pop in with some further explanation on what she does.
I tune in to your spirit guides and they give me information about the major areas of your life, career, finances, relationships, health, etc. They're looking for an opportunity to help unravel any knots in your life and get you moving easily in the direction you want to go. They will address problem areas and give you solutions you can implement (to one degree or another). Sometimes their info is very specific and sometimes they'll share options with you, tell you how each one will go, and let you decide what you feel most aligned with.
Upon occasion I will also be in contact with deceased relatives who usually pass on messages of love and/or concern.
I think what I like most about what I do is that I allow people time to ask questions. The guides will answer any question posed to them, but again the depth of the answer varies with the question. And sometimes the guides will flat out say, "Dumb question. Here's what you should be asking. Here's what you really need to know." But in a kind way