Add punctuation: This presses me towards the position of monopoly especially when I have the factorprices including the wages except for my own out of my grip
A: This presses me towards the position of monopoly, especially when I have the factor-prices including the wages (except for my own) out of my grip.

Add punctuation: For the common dining hall at St Catherines College in Oxford Arne Jacobsen designed this chair with the extremely high back for the professors
A: For the common dining hall at St. Catherine's College in Oxford Arne Jacobsen designed this chair with the extremely high back for the professors.

Add punctuation: This book takes the example of a valley to explain biodiversity and the Natura 2000 network of biodiversity sites Tom explores the valley with an old man and the mayor
A:
This book takes the example of a valley to explain biodiversity and the Natura 2000 network of biodiversity sites. Tom explores the valley with an old man and the mayor.