Their website offers many free introductory lessons.
Which give you the most trouble (like the Korean 'r/l' sound)
While the pronunciation book isn't free, their core Grammar Levels 1–10 offer free PDF lesson notes that include pronunciation tips for every grammar point. Their website offers many free introductory lessons
The TTMIK "How to Sound Like a Native Korean Speaker" book is specifically designed to address these issues. According to TTMIK, the book offers:
Free videos that demonstrate the very pronunciation tips found in their books. Summary Checklist to Sound More Native Study Batchim sound changes. Use Shadowing daily (10-15 minutes). Record yourself and compare to native audio 1.2.5 . According to TTMIK, the book offers: Free videos
TTMIK offers their accompanying audio tracks for on their official website. Even if you cannot afford the book right now, you can download the audio files legally to train your ears to native speech patterns.
These ensure you are actually retaining the pronunciation rules. Record yourself and compare to native audio 1
The book comes with audio recordings, allowing you to hear the correct native pronunciation.
: Available for free on Spotify, Apple Podcasts, and their website. It features natural conversations between native speakers.