I am Japanese.
I can't read the handwriting sentence of friends or teachers in daily life because
usually they write in running hand.
I can read almost printing, block letters.
Could you give me some information to recognize hand writing letters.
I have read the book of writing script but it was quite different from those
You'll have to ask those same people what they've written or ask someone who can read their handwriting. I don't think there's any other way.