Certification prep, trade and compliance references, and the figures buried inside paid reports — pulled out from behind expensive paywalls and turned into clean, searchable entries.
Each shelf replaces something normally sold — a course, a database subscription, or a packaged research report.
Condensed exam notes and formula sheets for PMP, AWS and CompTIA — the same material training providers package into $2,000 courses.
HS codes, Incoterms, tariff lookups.
Formulas, valuation models, glossaries.
Core figures extracted from paid research.
Visa rules, tax rates, regulations by country.
Codes, material specs, pricing baselines.
ICD-10 and CPT code lookups.
Architecture patterns, config references.
Not walls of text — clean reference tables you can scan in seconds, with the source cited at the bottom.
| Term | Meaning | Risk transfers when… |
|---|---|---|
| EXW | Ex Works — buyer collects at seller's premises | Goods made available at seller's door |
| FOB | Free On Board (sea freight) | Goods loaded on board the vessel |
| CIF | Cost, Insurance & Freight (sea freight) | Goods on board — but seller pays freight + insurance |
| DDP | Delivered Duty Paid | Goods delivered, cleared, duties paid by seller |
EV, PV, AC, CPI, SPI, EAC and the variances, each with the plain-English meaning and the mistake examiners love to test. The core of an $1,800 prep course.
Operational excellence, security, reliability, performance efficiency, cost optimization and sustainability — each pillar's design focus, on one page.
Every layer with its data unit, example protocols and devices, plus the mnemonics and the TCP/IP mapping. Core Network+/Security+/CCNA material.
Forward pass, backward pass, total float vs free float, and how to identify the critical path — the schedule-network math the PMP exam loves.
The ICC's paid handbook condensed into one table: who pays freight, who carries risk, and exactly where responsibility shifts between buyer and seller.
No email, no password, no cookie wall. Open the page and the knowledge is right there.
Entries are organized, cross-checked against primary sources, and refreshed regularly — so the library stays current without a paywall.
Static, fast, and global. Funded by unobtrusive ads alone, so it can stay free indefinitely.
Submit a topic and we'll research, structure, and add it to the open library — no account required.
Submit a topic