Our copy of My Little Word Book is tattered and held together with clear packing tape, despite being a board book. This is because Charlie slept with it in his bed from when he was about 9 months to when he was about 18 months, and we read it every night (not to mention in the daytime as well). It's your standard word book, with a photograph of something and its name written below, but extremely well done.
Montessori prefers the one-item-on-a-page style of word book, but that format is limiting for the simple reason that you can only have a certain number of items before you run out of pages. This book has between five and twelve items on each page. Most pages separate each item into its own box (as shown on the cover), but a few pages (flowers, vegetables, actions) are in a more freeflowing, overlapping format). Even on the item-in-a-box pages, at least one item takes up two or more squares. So, for example, on the toys page, the doll is two squares tall and the train is two squares long. This adds some visual interest and makes the book a bit more fun to look through.
What I really love about this book is how each two-page spread shows a category of items. First is body parts and people (boy, girl, man, woman).Next is actions (walk, sing, dance, kick). Next is clothing, then household items (clock, sofa, cup, computer). Next come toys, then food, then flowers and other outdoor items (tree, fence, frog). There's a vehicles page, then farm animals, then pets and birds, then wild animals (from squirrel to camel to tiger). The page labeled "our world" combines pictures of the sun and moon, a street scene, and a park on one page, with things like jungle, farmland, and beach on the opposite page. The last page is colors and shapes.
Charlie would go through phases where he was interested in particular pages/categories and ignored others. It was fascinating for me to watch him enthralled by the parts of the body one month, then skipping that page and heading right to vehicles day after day the next month. It allowed me to easily figure out what his little brain was focusing on, and then to enhance that focus by talking about it and bringing out other books on the same subject while he was most interested.
During his animal phase, Charlie also very much enjoyed My Little Animal Book, in the same series. It's the same size, shape, and style as the Word book, but obviously, focusing entirely on animals. The animals are categorized on pages for different types: farm, pets, African, jungle, ocean, forests, polar, rivers and lakes, reptiles and amphibians, bugs, birds, and Australian. The last three pages offer interactive activities that are not found in the Word book: match moms to babies, match patterns to animals, and counting.
Both of these books get my absolute highest recommendation for the under-18-months crowd.