Praktiker font here refers to the font used in the logo of Praktiker, which is a German hypermarket chain offering home improvement and do-it-yourself goods.
The font used for the Praktiker logo is probably Berthold Block Heavy designed by Hermann Hoffmann in 1908. Block is a commercial typeface available in various weights and you can view more details about it here.
Download Block Font
The Block font identified above is not available for free, please follow the link above and purchase the font. Meanwhile, you can take a look at our collection of fonts for cars, pop music and apparel as well as round-ups of new & fresh fonts around the web.