I was hoping for a book with a decent amount of information about the species of aquarium plants available nowadays, particularly to buy online where information is often patchy. This book isn't bad but I found it slightly frustrating in that, for example, it mentioned a plant in one chapter that wasn't included in the A-Z guides! It would also be good if preferences for hard or soft water were given explicitly in the summary for each plant rather than occasionally mentioned in the written descriptions.