resource for using garden tools?

Hi folks
I find that I know very few techniques for how to work well with the various hand tools
like a hoe, a shovel, a pickaxe, etc.
I want to make minimal movements, not get tired, slow work for a few hours straight.
And the technique should also be appropriate for older, weaker people and even grandpa's (weaker muscles, no strain on back or bones).

Is there such a recommended resource, book, manual? I imagine there must be since these tools are at least a few hundred years in the use.

Thanks a lot, kobi

I think the choice of tool will be more important than special techniques. You may want to book some time working with an older gardener.

Tools made with the disabled in mind,would seem a good choice. A Dutch hoe is pulled along and not as likely to jar arthritic joints in the way that a chopping action might. There's a funny limerick about a Dutch hoe who hangs around the docks in Rotterdam.