Books tips that helped me out,
All my notes thus far on building this internal trading system called AK47,
Some Excel files to assist my data analytics,
Complete links to my math study of Khan Academy,
R source code files for all lessons.
Bonus and exclusive material:
Excel Stock screeners,
.NET C# Source code files ,
and Database examples with schemas for SQL Server.
Many more many examples including source code and videos for your trading operations. Access to monthly contributions via monthly subscription.