Here is the thing. The basic principles of lighting wiring really aren't that complicated and really don't change that much whether the light is a traditional pendant or batten holder, a fluorescent strip or some fancy fitting.
* A switch connects/disconnects the live from the light. So the permanent live feed goes to the switch, then the switched live connection goes from the switch to the live terminal of the light and then the neutral terminal of the light connects back to the circuit neutral.
* Because we normally use multi-core cables rather than single wires for most wiring, there is normally a location where permanent live, switched live and neutral (and earths) all come together. That location may be either the light fitting, the junction box, or the switch.
* A blue or black wire is not necessarily a neutral.
Once you understand these principles you should be able to look at a lighting wiring diagram and *understand* it. And you should be able to see that the pictures you see for different types of light fitting are really the same thing electrically. I don't think doing electrics in general in a "painting by numbers" fashion is a good idea, understanding is what helps stop you screwing up.
What *DOES* change between different fittings is.
* Whether the fitting comes with a pre-fitted "loop" terminal for the permanent live or whether you have to supply your own terminal.
* How much wiring room there is.
* Where the cable entries are.
Traditional pendants are designed specifically to accommodate the normal three cables (two circuit cables and a switch drop). So the basics are accommodated pretty well but any extras can quickly start getting very cramped.
Fancy fittings are often very limited on wiring room. Metal cased class 2 fittings are particularly bad and often can only be correctly installed by fitting them with a single cable from a junction box.
Fluorescent strips usually had shedloads of wiring room and multiple cable entries. So the first course of action is to investigate the existing wiring to the fitting, does it all enter through the same hole or does it enter through multiple holes? is it wired with cables or with individual wires in conduit? Are there a normal and expected number of wires/cables connected in a normal and expected way or has someone used that nice big box for something else? Is the location where the cables enter appropriate for the new fitting?