Abstract: A portable folder type pencil case, includes, a cover sheet panel being foldable in half and including first and second half panels each respectively having an inner half panel overlaid and joined on an inner side of the cover panel, the first inner half panel having a non-adhesive lateral mid-portion and the second half panel having an adhesive lateral mid-portion for overlapping with the lateral mid-portion upon folding of the case, a first and second guard strip panel wherein an outer end portion of the first half cover panel is joined with the first guard strip panel and an outer edge end portion of the second half cover panel is joined with the second guard strip panel, and a single-face adhesive panel strip connected to the cover sheet panel adjacent the second guard panel strip and including a panel strip for reinforcement of the single-face adhesive panel strip, the second guard strip panel having an adhesive back face for being selectively securely engaged with the first guard strip panel.