Useful links

Math related

• The Matrix Calculus You Need For Deep Learning

Python

• Dive into python3 (online book) --- Mark Pilgrim
• Automate the boring stuff with Python (online book) --- Albert Sweigart
• Learn Python the hard way --- Zed Shaw

Statistics/R related

• http://www.statsoft.com/Textbook/ (Statsoft)
• Statistical Analysis Handbook by Dr. M J de Smith
• Probability and statistics EBook (by UCLA statistics department)
• Think Bayes by Allen B. Downey
• https://www.spatialanalysisonline.com/ -- Geospatial Analysis book online
• My page with R related links -- Also contains a file with functions I have accumulated over the years.

Data

1. http://census.ire.org/ -- Easy way to access/download 2000 and 2010 Census data.
2. http://www.naturalearthdata.com/ -- Free vector and raster map data at 1:10m, 1:50m, and 1:110m scales.
3. https://www.opentopography.org/ -- A portal for high-resolution topography data and tools. (Especially for LiDAR)
4. https://www.acleddata.com/ -- Armed Conflict Location and Event Data Project.
5. https://www.gdeltproject.org/ -- Global Database of Events, Language, and Tone (GDELT). Lots of data from 1979 to present.

Miscellaneous

• http://www.gutenberg.org/ -- Great resource for e-books! I love this site!
• http://www.freebooknotes.com/free-ebooks-guide/ -- Lists some other sites where you can get different e-books.
• https://archive.org/ -- Digital archive of digitized material like books, live music archive, and movies. Also, home of Wayback Machine!