Closet organizer

A closet organizer, comprising:

• a shelf, said shelf comprising two vertical side panels arranged in parallel at two opposite lateral sides, a vertical back panel connected between said two vertical side panels at a back side, a plurality of horizontal partition panels fixedly connected between said two vertical side panels at different elevations and dividing the holding space surrounded by said two vertical side panels and said vertical back panel into multiple vertically spaced receiving spaces;
• at least one first partition members for installation in at least one said receiving space in said shelf to divide each said receiving space into a plurality of compartments, each said first partition member comprising two side boards, an intermediate board, two first folding lines respectively connected between said two side boards and two opposite side edges of said intermediate board, two connection flanges respectively extended from a distal end of each said side board remote from said intermediate board, and a second folding line formed in one said side board in parallel to said first folding lines to make the respective side board foldable;
• and
• hook and loop materials respectively provided at top and bottom sides of each said horizontal partition panel of said shelf and each connection flange of each first partition member for enabling said first partition members to be detachably secured to said horizontal partition panels of said shelf.