Interview Workbooks
What's actually tested, 2024–2026. Questions restated from publicly-shared interview experiences; original step-by-step solutions, common pitfalls, and the follow-ups interviewers really ask. Every edition is bilingual — English and Chinese PDFs included.
Interview Workbook Bundle — All 6
All 161 questions across Quant, AI/ML, Data Science, PM, IB/PE/ER, and SWE — with original worked solutions. 12 PDFs total: every book in English and Chinese.
Bilingual edition — EN + 中文 included
56 questions in the 2024–2026 quant style: timed OAs, market-making games, QR statistics.
- Probability
- Brainteasers & Market-Making Games
- Markov Chains & Stochastic Processes
- + 5 more chapters
From the workbook
Shuffle a deck and discard the top 10 cards without looking. What is the probability the next card is red?
Bilingual — EN + 中文 PDFs included
What AI/ML interviews actually test in 2024–2026 — LLMs, RAG, and system design included.
- ML Fundamentals
- LLMs & Generative AI
- ML System Design & Applied Cases
From the workbook
Why does attention divide by √d_k — and what breaks if you don't scale?
Bilingual — EN + 中文 PDFs included
What SWE interviews test in 2024–2026: practical coding, AI rounds, design trade-offs.
- Coding & Algorithms: How It's Really Asked
- System Design
From the workbook
"Given a string and a line width, return how many lines the string takes to write." That's the whole prompt.
Bilingual — EN + 中文 PDFs included
What 2024–2026 DS interviews actually test: experiments, SQL, and product metric cases.
- Statistics & Experiment Design
- SQL & Data Manipulation
- Product Cases & Metrics
- + 1 more chapters
From the workbook
Your 50/50 split came out 49/51 — should you panic?
Bilingual — EN + 中文 PDFs included
What PM interviews actually test, 2024–2026: AI product sense, metric diagnosis, estimation.
- Product Sense & Design
- Execution & Metrics
- Strategy & Estimation
From the workbook
Name a product you admire, then change one thing.
Bilingual — EN + 中文 PDFs included
Three-statement chains, paper LBOs, stock pitches — 2024–2026 technicals worked in full.
- Accounting & Valuation
- LBO & M&A
- Equity Research & Markets
From the workbook
Depreciation expense increases by $10, tax rate 25% — walk it through all three statements.
Bilingual — EN + 中文 PDFs included
Questions are restated from 2024–2026 publicly-shared interview experiences; all solutions are original. Every solution was independently re-derived before publication. Instant download · personal-use license · checkout by Lemon Squeezy (card or PayPal).
Reading a solution isn't the same as delivering it under pressure.
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