This was the first ecuadorian cookbook I got in contact with, after my first few weeks in South America with only rough Spanish. It's ok for the beginning and I really liked the drawnings which explain some preparing techniques, which are mostly unknown outside South America.
Now after a few years with an ecuadorian wife and a fantastic cooking mother-in-law this cookbook is a little bit disappointing. The description of some recipes even with the drawings is poor, confusing or missing some ingredients and lackcing the taste of the real (fantastic!) ecuadorian kitchen. Also the selection of recipes is not really typical or complete for Ecuador. And at the end the book is not really cheap for the given quality, thin, hand written, no photos, and because of the translation in English and Spanisch only half of it recipes.
One "real and complete" standard ecuadorian cookbook for example is "La cocina ecuatoriana - Paso a paso" from the spanish publisher Lexus, about 270 pages, ISBN 9972-625-61-3. A little bit expensive but really worth the price. But may be difficult to get outside Spain and Ecuador.