Where to start
Liam Highducheck has created a video to help beginners get started. It covers each step in a simple and easy to understand way and also provides a progression plan to becoming a high level solver.
The basic steps for beginners are:
After the 2x2x3, create and solve the pair that belongs in the back (dBR). As detailed on the Steps page, it is recommended to always create this specific pair.
Orient all remaining edges using one of the 11 algorithms provided in the "Pair Solved EO" tab in the EOPair algorithm sheet.
Now you are at the LXS step. If you have an LXS case that you don't yet know, first insert the DR edge intuitively. If it is on the U layer, move it to the UF position and do R' U' R U R. If the edge is at the FR position, do R' U' R' U R. Then solve the last F2L pair intuitively.
Use OCLL and two look PLL to solve the last layer if you don't already know full PLL.