Resources 

These are some links that helped me so much. 

Advice for Ph.D. Students in Economics (Chris Roth and Daniel Schindler)

Applied Empirical Methods (Paul Goldsmith-Pinkham)

Difference in Differences (Asjad naqvi, Grant McDermott, and Taylor J. Wright)

Visualization in Stata (Fahad Mirza) 

How to Give an Applied Micro Talk (Jesse Shapiro)