Black Friday in KNIHY DOBROVSKÝ! The shopping spree is on, and right now is the perfect time to buy all the presents for Christmas. Come and shop in one day with a 20% discount and you are guaranteed to leave with a Christmas present for your family, friends and yourself. The deal is ONLY valid this Friday, November 29th, so hurry to the mall to avoid last-minute gift shopping! (The discount does not apply to gift vouchers, personal collection from the e-shop and already discounted goods. Discounts do not add up.)