Use a small number of high-quality resources rather than collecting everything available. Start with official firm materials, then add drills, casebooks, peer practice, and coaching selectively.
Official Firm Resources
- McKinsey: Recruiting guidance, sample problem-solving cases, interview videos, virtual-interview guidance, and information about the Solve assessment.
- BCG: Case-interview guidance, preparation tips, recruiting information, and online-case materials.
- Bain: Interview guidance and sample cases such as Coffee Shop Co. and FashionCo.
- Other firms: Always check the recruiting pages of the specific firm and office where you are interviewing.
Books and Written Resources
Useful examples: Case in Point by Marc Cosentino, Case Interview Secrets by Victor Cheng, consulting-club casebooks, and reputable online guides.
University casebooks: MBA consulting clubs at schools such as Darden, Kellogg, Wharton, Duke, and others periodically publish case collections. Availability and redistribution permissions vary, so use current authorized versions.
Websites, Courses, and Practice Platforms
Examples include CaseCoach, PrepLounge, Management Consulted, and Crafting Cases. Depending on the provider, these offer courses, case libraries, drills, peer matching, or coaching.
Videos, Podcasts, and Skill Tools
Use official consulting-firm channels and established preparation providers for case demonstrations. Mental-math tools should emphasize percentages, ratios, large-number arithmetic, and business calculations. Market-sizing resources should emphasize logical decomposition and assumptions rather than memorized statistics.
AI, Peer Practice, and Coaching
AI tools: Useful for generating drills, practicing structures, simulating cases, and critiquing answers. Validate important feedback rather than assuming it is correct.
Peer platforms: Services such as PrepLounge and CaseCoach can help candidates find practice partners.
Paid coaching: Available through specialized platforms and independent coaches. Evaluate interviewer experience, teaching ability, feedback quality, pricing, and fit before purchasing sessions.
Final principle: Official firm resources should be your source of truth for interview format. Use other resources to develop skills, not to replace firm-specific guidance or encourage memorized answers.
