Bookmarks
Curated links I keep coming back to.
Last updated: July 2026
Statistics & Data Science Blogs
- Andrew Gelman's Blog Bayesian statistics & methodology
- Hyndsight Rob Hyndman - time series & statistical forecasting
- Julia Silge Julia Silge - tidymodels, text mining & machine learning with R
- R-bloggers Community-aggregated R blog posts
- Simply Statistics Blog by Johns Hopkins biostatisticians
- Statistical Thinking Frank Harrell - clinical biostatistics
- Stats and R Statistics blog with R, Antoine Soetewey
Communities
- Cross Validated Stack Exchange for statistics & machine learning
- Posit Community Official forum for R, RStudio & tidyverse
- r/datascience Reddit community for data science
- r/rstats Reddit community for the R language
- r/statistics Reddit community for statistics
Data Visualization
- Cédric Scherer Data visualization blog & ggplot2 tutorials
- DataViz Inspiration Curated collection of inspiring data visualizations
- From Data to Viz Chart selection decision tree
- ggplot2 docs Official ggplot2 documentation
- karaman.is Blog featuring a collection of beautiful charts
- The D3 Graph Gallery D3.js chart examples with code
- The Python Graph Gallery Hundreds of Python chart examples with ready-to-use code
- The R Graph Gallery Hundreds of R chart examples with ready-to-use code
- TidyTuesday Weekly data visualization challenge
R Books
- Advanced R Wickham - deep dive into the R language
- Bayes Rules! Johnson, Ott & Dogucu - applied Bayesian modeling with R
- Causal Inference in R Barrett, D'Agostino McGowan & Gerke - causal inference with R
- Causal Inference: The Remix Cunningham - causal inference, 2nd edition, free online
- DBDA2 Kruschke - Doing Bayesian Data Analysis, 2nd edition
- Doing Meta-Analysis Comprehensive guide to meta-analysis with R
- Forecasting (fpp3) Hyndman - time series analysis & forecasting with R
- Geocomputation with R Lovelace - spatial analysis & mapping with R
- ggplot2 Book Wickham - comprehensive guide to ggplot2
- Introduction to Modern Statistics Çetinkaya-Rundel & Hardin - introductory statistics with R, 2nd edition
- ISLR James et al. - introduction to statistical learning, free PDF
- R for Data Science Wickham - the essential R & tidyverse book
- Tidy Modeling with R Kuhn & Silge - machine learning with tidymodels
Python Books
- Automate the Boring Stuff Sweigart - practical Python automation, free online
- ISLP James et al. - introduction to statistical learning, Python edition
- Python Data Science Handbook VanderPlas - NumPy, pandas, matplotlib & scikit-learn
- Python for Data Analysis McKinney - pandas from its creator, free online
- Think Python Downey - Python language fundamentals, free online
Greek Data
- Bank of Greece Economic data & reports
- data.gov.gr Greek Government open data portal
- ELSTAT Hellenic Statistical Authority
- IAPR Independent Authority for Public Revenue - tax statistics
- SETE Association of Greek Tourism Enterprises - tourism statistics
Global Data
- BIS Statistics Bank for International Settlements - global financial data
- DBnomics Data aggregator from ECB, Eurostat, World Bank, IMF and more
- ECB Data Portal European Central Bank - Eurozone data
- Eurostat European Union statistics
- FRED Federal Reserve - vast economic time series database
- Gapminder Global development & health data
- Google Dataset Search Search engine for datasets
- Harvard Dataverse Academic research data with citations
- ILOSTAT ILO - global labour market statistics
- IMF Data IMF - macroeconomic & financial data
- IPUMS Census & survey microdata from dozens of countries
- Kaggle Datasets Massive community dataset repository
- OECD Data OECD - statistics for 38 member countries
- Our World in Data Global data visualizations with sources
- Penn World Table Historical macroeconomic data by country
- UN Data UN - statistical databases
- WHO Data WHO - global health data
- World Bank Data World Bank - global development data
Web Tools
- Contrast Checker Color contrast ratio checker for accessibility (WCAG)
- Mozilla Observatory Website security audit by Mozilla
- PageSpeed Insights Google page speed & performance analysis
- Security Headers Check your site's HTTP security headers
- The A11Y Project Community-driven web accessibility checklist & guides
- WAVE Web accessibility evaluation tool
YouTube Channels
- 3Blue1Brown Math & statistics with stunning visualizations
- Albert Rapp Tutorials on R, ggplot2, Quarto & Shiny
- Julia Silge tidymodels, text mining & ML with R
- Posit PBC Official R/tidyverse/Shiny/Quarto channel
Learning Platforms
- freeCodeCamp Free coding and web development curriculum
- MOOC.fi Free courses from the University of Helsinki
Tools & References
- Astro Docs Astro framework documentation
- CRAN Task Views R packages by topic area
- Highcharts Demos Interactive chart examples
- Quarto Modern scientific publishing with R, Python & Julia