Get a book or 2 - Start with Joe Irving "Training Spaniels". Get some DVDs - Simon Tyers "Hawcroft cocker Training" is highly recommended.
I start with mine when they are bold enough & hunting hard enough to take the discipline of serious training. Can be any age but usually 8-10 months with cockers.
Puppy training starts the day I get him.
That's puppy recall, very easy to do as the pup should always want to be with you.
Puppy retrieves - 1 or 2 a WEEK just across your back garden, kitchen floor, anywhere, just getting them to pick up & come back to you. - Dont do ste