Fluent Forever

Harmony/Rodale/Convergent

Fluent Forever (Revised Edition): How to Learn Any Language Fast and Never Forget It

Independently published

The Polyglot Method: from A0 to C1: How I learned to speak 3 foreign languages fluently and none of them at school

Audible

Fluent in 3 Months: How Anyone at Any Age Can Learn to Speak Any Language from Anywhere in the World

Pearson Education Limited

I dont want to live forever? Info Trail Fluent Book 15 (LITERACY LAND)

Fluent For Free: How to Learn Any Language at No Cost and Change your Life in the Process (English Edition)

Fluent English Publishing

English Irregular Verbs Complete: Learn in Days, Keep Forever

Independently published

Fluent For Real: Master Any Language Naturally And Never Lose it. The Essential Principles from a Self-Taught Polyglot Who Speaks 8 Languages

Becoming Fluent in German: 20 Short Stories for Beginners

Independently Published

How to become fluent in 5 Months: The Ultimate Guide To Learn Any Language - Sharing With You My Wonderful Experience

Independently Published

German Language for Beginners: The Ultimate Guide to Improve Your German, Learning New Skills with Phrases and Advanced Techniques from a Basic German to Forever Fluent