This is a beautiful field guide to Ontario wildflowers. The quality of the photographs is excellent, and it gives more information on each wildflower than other guides do - for example, it tells us how the plant was used medicinally by natives, and other interesting tidbits. It would be a great book for those who are interested in identifying a few flowers that grow wild in their neighbourhood.
However, with only 101 wildflowers in the book, obviously its scope is limited. Many times I have looked in this book for a flower I saw and was not able to find it. If you are really a serious student of wildflowers, I would encourage you to buy The ROM Field Guide to Wildflowers of Ontario, which has 550 different flowers listed, even if it isn't as pretty a book as this one.