thegildedcentury:

Life, September 23, 1946
Circus Gouldi.From A History of the birds of New Zealand.
Found here.
Illustration by Francesco Franchi to a poem by Berthold Brecht.Found here.
The war which is comingIs not the first one. There wereOther wars before it.When the last one came to an endThere were conquerors and conquered.Among the conquered the common peopleStarved. Among the conquerorsThe common people starved too.
Original german:
Der Krieg, der kommen wird Ist nicht der erste. Vor ihm Waren andere Kriege. Als der letzte vorüber war Gab es Sieger und Besiegte. Bei den Besiegten das niedere Volk Hungerte. Bei den Siegern Hungerte das niedere Volk auch.
Champion Papers Imagination XIII.Cover, line art from stop-motion photographs (1968).
Found here.
From Tratado de natação (1938).Illustration by Mário Salgado.
Found here.
Inside the Deep Sea.
From If You Could See Inside (1948) by Marie Neurath.Illustrations by Gerd Arntz.
Found here.
Pages from a notebook by Shingo Ikeda.
Found here.
Climate and Weather (1969) by Hermann Flohn.Book cover design by Design Practitioners.
Found here.
Colour Vision.From the Illustrated Dictionary of Photography (1972).
Found here.
How Long Do Animals Live?Illustration by Gerd Arntz from Compton’s Pictured Encyclopedia, 1939. 
Found here.
vizualize:

Pictographs Today and Tomorrow (1938) by Rudolf Modley via FastCo.Design
Shark silhouettes.
From Shadows in the sea, Chilton Books (1963), Philadelphia.
Found here.
Birthday Cakes.

Scan from an Estonian maths book.
Found at Present&Correct.
Scan from an Estonian maths book.
Found at Present&Correct.