The Coffee Shop
A small voice in the dark moves more than it knows. Chirp anyway.
Imagine a coffee shop that opened in 1980 and never closed.
Every chair is a sociologist or political scientist. Some have been there since the doors opened — Coleman in one corner, Putnam at the bar, Massey by the window watching people walk past. Others arrived later — Mendelberg ordered her first espresso in the mid-90s and has been here ever since. The newest baristas just clocked in last year.
The shop has 7,000 chairs and they’re all full.
Most conversations are citations — someone overhearing what someone else said and writing it down. But some conversations are something rarer: the kind where one scholar trains another, where a sentence in 1983 ends up shaping a sentence in 2018 because the second person learned how to think from the first.
This page is a map of those conversations.
What you’re looking at
- 7,000 dots. Each dot is an author who published in a flagship sociology or political-science journal between 1980 and 2025.
- Vertical position = the year of their first publication. 1980 at the top, 2025 at the bottom. Scroll down to walk forward through time.
- Color = field & tier. Reds for sociology, blues for political science. Darker = top-flight journal.
- Lines connecting dots = mentor → mentee edges. Two kinds:
- Bold purple lines are Wikipedia-verified advisor/student pairs from the top-500 authors’ biographies. These are gold-standard data.
- Thin gray lines are inferred via co-authorship asymmetry (Sinatra et al. 2016 Science) — pairs with a ≥5-year first-publication gap who co-authored together in the junior’s early career window.
- Big black-outlined dots are “heads of school” with 25+ descendants in the graph. There are 84 of them.
Click any dot to isolate that scholar’s intellectual lineage — mentors in purple flowing up, mentees in green flowing down. The decade sidebar on the right summarizes who was training whom in each ten-year slice.
The interaction lives in the embedded viz below. If you want a wider canvas, open it in a new tab.
A note on missingness
This isn’t the whole coffee shop. A few caveats baked in:
- Anglophone journals only. Bourdieu doesn’t have a chair here. Habermas doesn’t either.
- Co-authorship inference misses solo influence. Coleman, Granovetter, and Tilly — three of the heaviest hitters in the room — have famous solo papers that trained whole generations through reading, not co-writing. Their footprint here looks smaller than their actual influence.
- Recent students are sparse. Famous mentors like Mendelberg have 40+ named PhD students on their CVs, but many of those advisees haven’t yet accumulated enough citations to land in the top-7000 universe. They’ll show up in this graph in 5–10 years as their work compounds.
The viz makes this gap visible rather than hiding it. Click any famous-but-childless author and you’ll see the citation-vs-genealogy callout explaining why.
The viz
Method, briefly
| stage | source | tool |
|---|---|---|
| Authors + citations + journals | OpenAlex Works API | curated 87-journal whitelist, top-cited works 1980-2025 |
| Inferred mentor edges | OpenAlex co-author pairs in same whitelist | Sinatra-style asymmetry rule (≥5yr first-pub gap, early-career joint paper) |
| Verified mentor edges | Wikipedia infobox fields (doctoral_students, doctoral_advisor, notable_students) on top-500 authors |
parse + match to OpenAlex universe |
| CV-verified edges (rolling) | Direct CV scrapes for non-Wikipedia authors | regex on “DISSERTATION ADVISING” / “PhD Students” sections, role-tagged (chair / cochair / committee) |
| Layout | width-weighted DFS tree rooted at earliest-mentor per component; Y = first publication year; tilt-fold for over-wide subtrees | Python + NetworkX + Plotly Scattergl |
The whole pipeline is resumable. Every time I sit at the coffee shop I add a few more chairs.
Built with Claude. Re-framed as a coffee shop because the actual phrase “co-authorship-asymmetry-inferred mentorship network” makes most people stop reading at “co-”.