If you don't know ANYTHING in Latvian, book is for you. If you know something already a bit, don't waste your money.
For example, in page 109 (phrases page) are 30 words!!! 15 Latvian and 15 English (9 sentences).
You can take this book if you are going to visit Latvia for 1st time, and would like to learn "Hello, how are you?" in Latvian.
If you speak English, then you want to know words in Latvian. So, for example, with letter "d" there are like 115 words in English only..
This book should be called "Your first 10 sentences in Latvian", "...book for tourists". Not dictionary...