How much wider reading should I do?
Textbooks and a few core texts recommended by your teacher will often suffice, however reading a few good overviews of the period will help you to better understand it and provide examples or explanations not mentioned in class. However it is better to know the course content better than to be distracted by detailed academic arguments. For coursework, wider reading is necessary however it will tend to be more specialised and will probably be limited to twenty articles or chapters of books.
EM
Related History A Level answers
All answers ▸(French Revolution) How successful was the terror in destroying counter revolution in the years 1792-1795?
"Margaret Thatcher biggest successes were in foreign policy" Assess the validity of this view.
How should I deal with counterarguments in an essay?
The success of the civil rights movement in the years 1947 to 1957 was dependent on the NAACP [National Association for the Advancement of Colored People]? (past exam question)