Good point, dave!
i have a shelf loaded with gardening books, probably because I'd rather read than work! however, it is so easy to look things up on the net that they are now hardly ever opened. All the info you need is out there.
It is true that different plants need different pruning, but unless you mix them up you won't have a long season of flowering. What is invaluable is a notebook, somthing I omitted to have in my earlier years of gardening and now really regret. If you keep a note of what you planted and where, together with maybe a note on the pruning and flowering seasons and eventual size, you'll be able to prune each. I also have things growing through each other, and sometimes have a problem deciding which should be pruned, It doesn't matter that much because the worst that can happen with most plants is that I lose some of this year's flowers. There's such a lot of enjoyment in learning about plants and how to nurture each one, and I still have a lot to learn. I really hope you have a lot of fun in the process.