If you're new to Montessori, and would like a very practical, easy-to-do at home book, Teaching Montessori in the Home the Pre-School Years is a book for you. Including the appendices it's a whopping 115 pages long so it's not over whelming. There are very practical exercises as well as the ever important explanation of "how to present" to your child. The last 15 or so pages are instructions on how to make your own equipment. I borrowed my copy from the library but it's such a valuable book, I'm thinking of buying my own copy.
If you want to take advantage of the free shipping on Amazon and are looking for other books - Teach Me to Do it Myself and How to Raise an Amazing Child the Montessori Way are other helpful books I've borrowed from the library.