Abstract: A pocket carrier of index cards comprises a main body, a hood that is hinge-mounted on the main body, a latch set equipped on the rear-side of the main body for locking of the hood, and a rear cover plate to protect the latch set. The main body has a front-side wall, a rear-side wall, and two lateral-side walls. The front-side wall of the main body have the concave sections at the left top corner portion and the right top corner portion to enable the thumb to approach the index cards contained therein. The rear-side wall and the lateral-side walls of the main body have the top inner portions tapered outwardly to facilitate inserting of the reviewed card back to the main body. The hood includes a front-side wall having a plate spring, a top-side wall, and two lateral-side walls, each with a hook, a hinge hole, and a concave section. The latch set consists of opening tabs, anchoring blades, generally semi-circular springs, and a connector rod.