Where to start with bodyweight strength/skill acquisition.

This is hugely dependent on your level of fitness, how often you train and where this lies in your fitness priorities.

However, if you are interested in learning some bodyweight strength exercises but dont know where to start my advice would be to start on one skill for 2-4 months. I made the mistake of trying to learn too many exercises at the same time and progress was slow with a lot of them.

If you train 4-5 times a week, a good place to start would be to complete 4 sets 3 times a week. (If you train less you could start with just twice a week.) Each week you can add a set on per workout until you are up to 24-30 total sets per week. 

As you get stronger, although you are adding more sets per workout, you'll find each set less taxing and therefore will be able to handle more volume. After 2-4 months, or if you are able to complete the skill, you can decrease the sets to just 'maintain' the strengrh it requires to complete the skill and then use the same philisophy to work on a new skill.