I never thought I'd find any modular origami books to rival Tomoko Fuse, but Ms Mukerji has created a fantastic book!
Off the bat I have to say, this is not the ideal primer for early beginners. However, there are plenty of beginner tips, basic fold instructions, and even a little modular history. So, if you're diligent (and patient) you will eventually succeed. And you'll definitely have fun and learn a lot!
For the more experienced folder, this is a great book for broadening your modular repertoire. You can definitely tell Ms Mukerji has a math and science background, as pearls of mathematical wisdom are peppered throughout the book. Her comfort in that field served her well in designing some truly gorgeous models. I like how some of them lead to variations, with room for you to input some of your own ideas.
Also, some of the designs feel feminine, with a softness you don't see very often in mod origami books. There are waves and curves, and the flowers seem to be in the process of blooming!
The designs are organized in chapters by the kind of base used. The illustrations are numerous, but the descriptions and directions are brief. That won't pose a problem for the more experienced folder, but the beginner made need some trial and error to understand the process. (Remember to look one step ahead if you get stuck!)
In short, this a great book to add to your collection. It is different enough from previous books for you to feel entertained, if not challenged. But hey, even the best folder has to take a deep breath before merging in that last unit!