The Second Key to the PST
A second full test with fresh cases, by Stephan Spijkers
Once you have the method, you need more material that behaves like the real thing. Another 26 questions, new clients and the same detailed answer guide.
Secure checkout by Stripe. Pay by card, Apple Pay or Google Pay. Price includes VAT. Instant download after payment. Every purchase includes the English and the Dutch edition.
PDF e-book, print-ready, instant download. 2026 edition. Best for: Candidates who finished the first test and want a clean, comparable second attempt.
Honest note: McKinsey retired the paper PST and now uses Solve. This book trains the underlying data-interpretation and math skills that today’s online screens reward.
What’s inside
- 26 new questions across fresh business cases
- Same timing and difficulty as the first test, so scores are comparable
- Detailed worked answers for every question
- Ideal as a second timed run after reviewing your first attempt
“I used your book to prepare and it was really helpful. I just heard that I passed the test, and I finished with about 10 minutes to spare to review the questions I was unsure of.”
Reader, after passing McKinsey’s written test
Questions about The Second Key to the PST
Is this still useful now that the PST is retired?
Yes, for the skills. The test trains reading dense exhibits, calculator-free math and isolating the client’s question, which McKinsey Solve’s data tasks, BCG’s online case and Bain’s numerical tests all reward. It does not simulate the Solve games themselves.
How should I take the test?
Print it or use a second screen, set a 60-minute timer, put away your calculator and answer every question. Then work through the answer guide question by question, including the ones you got right.
What format is it?
PDF e-book, print-ready, instant download.
Do I also get the Dutch edition?
Yes. Every purchase includes both the English and the Dutch 2026 edition. Your download page lists both PDFs.
How do I get the book after paying?
Right after payment you go straight to your download page. Bookmark it, because it is how you download the book again later. Your receipt arrives by email from Link, Stripe's checkout service. If you lose the page, email info@caseinterviewhq.com with your receipt and you get the link again.
Who processes the payment?
Link, Stripe's checkout service, charges you as merchant of record and handles the payment, VAT, your receipt and any refund. The books are provided by Koopjes Voor Jou BV. Case Interview HQ never sees or stores your card details.
Is there a refund policy?
Yes. If the book does not help you, ask for a refund within 60 days of purchase: email info@caseinterviewhq.com, or contact Link support from your receipt.