The Bid side of the order book is on the left and colored green. The Ask side of the order book is on the right and colored red.
This is the number of coins offered at a specific price point.
This is the cumulative number of coins offered to a specific price point. In other words, this is the sum of all “quantity” leading to this price level in the order book.
This is the offer price by a trader or traders at a specific price point.