@PetraG, Big commitment there, four encyclicals.
Try this as alternative, study form, not that big really. Very readable.
The Social Attitudes of a Catholic
ISBN-13: 978-0176574130 ISBN-10: 0176574131
Description
Table of Contents:
Chapter 1 : Christian morality: personal or social?
Chapter 2 : Spiritually or justice?
Chapter 3 : Our culture: friend or enemy?
Chapter 4 : What do we mean by “the dignity of the human person”?
Chapter 5 : Individuals or social beings?
Chapter 6 : What is “the common good”?
Chapter 7 : Human rights
Chapter 8 : Charity or justice: social service or social action?
Chapter 9 : “It’s mine; I worked for it; I can do what I like with it!”
Chapter 10 : Making and spending money
Chapter 11 : Investing our money
Chapter 12 : Tax cuts
Chapter 13 : Who are the poor?
Chapter 14 : Third world debt: a moral issue
Chapter 15 : Co-operatives and credit unions
Chapter 16 : Subdue the earth or protect it?
Chapter 17 : Immigrants: a threat or a blessing?
Chapter 18 : Crime and punishment
Chapter 19 : Work: just a job or something more?
Chapter 20 : Work can be hazardous to your health
Chapter 21 : Labour unions
and more!