
1. Nikita Nepryakhin. Convince and Win. – 5 euros. 2. Sheldon Natenberg. Options. (hardcover) - 10 euros. 3. Yogi Ramacharaka. Raja Yoga – 7 euros. 4. Leonardo da Vinci. On Art and Science. – 5 euros. 5. Image "9 Steps of Concentration Development", print on thick cardboard, pastel colors, size 20x30 cm – 5 euros. 6. Image "9 Steps of Concentration Development", on thin metal plate, bright colors, size 20x30 cm – 7 euros.