The only official lecture notes provided by Kaplan Medical, USMLE Step 3 Lecture Notes 2021-2022: 2-Book Set offers case-based review with a variety of life-like cases.

From the same team of instructors who wrote Kaplan Medical's USMLE Step 1 and Step 2 CK Lecture Notes.
More than 250 in-depth cases covering every discipline you'll need on this section of the boardsOrganized in outline format for efficient studyCovers the most commonly seen chief complaintsIncludes basic science correlates likely to be tested on the exam, patient management from Kaplan's experts, patient safety, and population healthThis collection of books assumes mastery of both Step 1 pre-clinical discipline-based and Step 2 CK