An image reading apparatus includes a conveyor defining a conveyance path including an upper path, a lower path including a reference portion and a first and second inclined portions, and a curved path, and a first reading unit for reading an image of the sheet when passing the first inclined portion. The conveyor includes a chute member forming a guide surface. The chute member includes a first chute member forming a first guide surface defining the upper path and a second chute member forming a second guide surface defining the first inclined portion. The first chute member forms a third guide surface defining the second inclined portion.