Good and Worth Trying,
Verified Purchase(What is this?)
This review is from: How to Speak German in 90 Days: A Comprehensive Guide for Beginners (Kindle Edition)
The idea behind this book is that if you learn 10 German words a day, you will have acquired a vocabulary of 900 German words, which is enough to get a fairly good grasp of the language. You need three 10 minute sessions per day to accomplish your task. I say, go for it!