Standard N1 word lists contain 1,500–2,000 words. Mimi Kara Oboeru focuses on the hardest 800. These are the words that appear in Q2 (Select the similar meaning) and Q4 (Word usage) of the JLPT reading/vocab section. For example:

If you want, I can:

The book covers approximately 1,170 words essential for the N1 exam, divided into 14 thematic units. Auditory Focus: