The SlideFolder will hold up to 20 standard microscope slides 75 mm x 25 mm (3" x 1") and is made of 2 parts: a base holding the slides horizontally, offering numbered spaces for easy identification, and transparent doors that can either cover the slides or be swung behind the SlideFolder for space-saving purposes. The 2 transparent hinged covers offer a full view of each slide without having to remove it from its position in the SlideFolder, and allow easy reading of ID labels with or without an optical bar-code reader. All units are stackable and take minimal space on laboratory tables or shelves.