Compost - types and tips

[jaws4evr]

Hi there

I've been advised that my "sun" flowerbed is probably in dire need of some TLC, specifically, addition of compost as a natural fertilizer.

Superstore has a few options
a) Mushroom compost
b) Shrimp compost
c) Cow manure

Which of these would be the best choice?

Also, I'd love some tips and tricks as to how exactly to add the compost/manure to the soil, being a brand new gardener in need of some learning

Thanks