Format of a Data Set
There is a detailed description of the form a data set should have.
An outstanding introduction to medical statistics is Held, Rufibach and Seifert’s textbook.
To be recommended is also Martin Bland’s Introduction to Medical Statistics.
Highly seductive is Salsburgs’s book on the history of statistics.
An introduction to the philosophy of science is Okasha’s small book. (“This book gives an excellent sense of what keeps philosophers of science awake at night.” – Peter Lipton.)