An annotated bibliography is a list of sources with brief descriptive and evaluative notes (annotations) explaining each source's content, methods, reliability, and relevance to the research question — more useful than a plain reference list.
Deep work is professionally valuable cognitive activity performed without distraction — the ability to focus intensely on a demanding task long enough to produce the high-quality output that shallow work cannot.
Epistemic humility is the recognition that your knowledge is limited, your beliefs may be wrong, and your understanding is incomplete — combined with a genuine openness to revising your views in light of evidence and argument.
Grey literature is research produced outside traditional academic publishing — government reports, conference papers, theses, NGO publications, preprints, and technical documents. It's often more current and candid than journal articles and critical for complete evidence reviews.
Lateral reading is a fact-checking technique where you leave a source quickly and search for what others say about it — checking the credibility and reputation of a source from the outside rather than evaluating it from within.
Marginalia are the notes, underlines, symbols, and annotations made in the margins of books and documents during reading — the visible record of a reader's engagement with a text. They convert passive reading into active thinking.
Primary sources are original, firsthand documents or data — the study itself, the original speech, the raw interview. Secondary sources interpret or summarize primary sources. Knowing which you're reading determines how much to trust the claim.
Source triangulation is the practice of verifying a claim by checking it against multiple independent sources — so that no single source's bias, error, or limitation determines your conclusion.
The second-brain method is a personal knowledge management system that offloads information storage to an external digital system, freeing your biological brain for thinking, connecting ideas, and creating rather than remembering.
A digital garden is a personal website or note collection that grows in public over time — with ideas in various states of development, linked to each other, and continuously tended rather than published as finished essays.
A knowledge base is a centralized repository where a team or individual stores, organizes, and retrieves information — turning individual expertise into institutional memory that survives turnover and scales across teams.
A knowledge worker is someone whose primary job is to think, analyze, create, and communicate — using information and expertise rather than physical labor. The term, coined by Peter Drucker, covers most professional roles today.
A personal wiki is a privately maintained, hyperlinked collection of notes and reference pages that you edit freely — like Wikipedia for your own accumulated knowledge, organized by topic and navigable through internal links.
A reference manager is a software tool that collects, organizes, and formats academic citations — storing papers, articles, and books with their metadata, generating in-text citations, and creating reference lists in any style automatically.
A research database is a structured collection of information — academic papers, market data, user interviews, competitive intelligence, or any domain-specific sources — organized for systematic retrieval to support decisions and synthesis.
A vector database stores numerical representations of content — embeddings — and finds items by semantic similarity rather than exact keyword match. It powers AI search, recommendation systems, and RAG (retrieval-augmented generation).
Active recall is a learning technique where you retrieve information from memory rather than re-reading it — testing yourself on what you know forces deeper processing than passive review.
Chunking is a cognitive strategy for grouping individual pieces of information into larger meaningful units — allowing you to hold more information in working memory by treating a group as a single item.
Cognitive load is the total mental effort your working memory uses at any moment. Learning fails when cognitive load exceeds working memory's capacity — design and note-taking systems reduce load to enable better thinking.
Desirable difficulties are learning conditions that slow apparent progress in the short term but produce stronger long-term retention — like spacing, interleaving, and retrieval practice.
Dual coding is a learning strategy that combines verbal and visual representations of the same information — creating two separate memory traces that reinforce each other and make recall significantly more reliable.
Elaborative encoding is the process of connecting new information to existing knowledge by adding meaning, context, and associations — creating rich, multi-layered memory traces that are far easier to retrieve than isolated facts.
Embeddings are numerical representations of text, images, or other content — lists of numbers that encode meaning so that similar concepts produce similar numbers, enabling machine learning models to understand and compare content semantically.
Enterprise knowledge management is the discipline of systematically capturing, organizing, sharing, and using organizational knowledge — so that what one team learns doesn't stay siloed, and what any employee knows doesn't disappear when they leave.