Identification and resources

[Grassandwood]

Hello!

I recently moved to a different country, 55N and visited a few woods. So many mushrooms!
I don't have any mycology background or any mushroom picking knowledge. So I'd love your help to ID these two mushrooms.
Mushroom 1:
http://tinypic.com/view.php?pic=111top5 ... j8PK4Y9K4E
Mushroom2:
http://tinypic.com/r/s2qfcz/5
Gills for the first:
http://tinypic.com/r/2uhl26u/5
Gills from the second:
http://tinypic.com/r/2igeqm8/5

I thought it was the same specie because they both bruise to a brown colour and look alike but the first cluster was growing directly on cow dung in a grass field (tried to pick one, all came with it...) and the second on dead wood. So I'm not sure.

There is many more different species than them so I wondered if someone could direct me to some identificaiton resources? Perhaps a book, an online course?
Frankly any mycology-related info would be appreciated. I love to learn.

Thanks!

Grassandwood

[fungi2bwith]

They both look like sulphur tuft, which is not edible. I suspect the first one was growing from some burried wood.