Series - Picasso and books

All his life, Pablo Picasso slipped books into his paintings and drawings.
Here is a large collection gathered here.
Seated Woman Reading , c.1899
Reading , 1901
Queen Isabella , 1909
Pierrot , 1918.
Woman reading (Olga) , 1920
The Reader (Olga ), 1920
The Reading , 1921
Woman reading , 1920
Reading , 1921
Reading at a table , 1934
Two characters , 1934
Two Girls Reading , 1934
Woman Reading, 1934
The Lesson , 1934
Woman reading , 1935
Great bather with a book , 1937
Girl reading , 1938
Woman reading , 1939
Lying woman reading , 1952
Girl reading , 1953
Head of a woman reading, 1953
Jacqueline reading 1 , 1957
Jacqueline reading 2 , 1958
Woman lying down reading (Marie Therese Walter), 1960
Lying woman reading , 1960
Woman sitting reading a letter 1963
Jacqueline Lisant , 1964