https://www.marxists.org/archive/marx/works/1865/value-price-profit/index.htm
Stop reading when you reach the following sentence: ” We took our departure from a fact of political economy the estrangement of the worker and his production. We have formulated this fact in conceptual terms as estranged, alienated labor. We have analyzed this concept hence analyzing merely a fact of political economy.” (review 1)

https://www.marxists.org/archive/marx/works/1844/manuscripts/labour.htm
Read the below sections:

6. Value and Labour
7. Labour Power
8. Production of Surplus Value( review 2 )

each review will write as “template for write-ups”