Purchasing the physical book provides a better tactile experience for the intensive "Practical Training" exercises. You can find the at several major retailers: Kanji (Shinkanzen N1) | PDF - Scribd
Offers free N1 vocabulary quizzes, worksheets, and intensive grammar lessons on their Study Page NativeCamp: Shin Kanzen Master N1 Goi Pdf Free
If you want a reliable version for your studies, consider these options: Purchasing the physical book provides a better tactile
Work through one chapter at a time. Each chapter typically includes basic exercises to confirm meaning and practical exercises that mirror the exam format. How to Master JLPT N1 Vocabulary: A Guide
How to Master JLPT N1 Vocabulary: A Guide to Shin Kanzen Master Goi (PDF Resources)**
: In the first half, vocabulary is grouped by themes and situations.
Go through the "Mondai" (Problems) section cold. Try to answer the questions without knowing the vocabulary. Circle your wrong answers. This identifies your "blind spots."