Though most content will be contained here on the class website, if you're more inclined to practice, absorb, and excel using a book, many of the signs/vocabulary and phrases you'll be learning have been taken from an earlier version of "The American Sign Language Phrase Book". The image to the right includes a DVD, which may also offer you additional support and perspectives. (If you find a used version, it can be over 50%-75% cheaper!)
There are many ASL Dictionaries, "Do-It-Yourself" books, "ASL For Dummies", etc., as well as hours upon hours of YouTube videos. Before you buy another book (or spend your off-hours trapped in an endless YouTube black hole of ASL videos!), send me an email with the link or picture of the book and I will let you know if it's worth your time.
Just because a lot of content is out there doesn't mean it's been professionally curated and actually useful towards learning ASL, its grammar/sentence structure, and a respect for the language through a Deaf lens. YouTube, especially, is awash with ASL 1 students, children, and amateurs who have access to a computer, a webcam, and have 2 hands. This doesn't make them fluent, reliable models, or useful on your ASL journey. They might actually be counter-productive and poor models, contributing to dysfluent habits that may be hard to kick later!
Lou Fant and Barbara Bernstein Fant (2011)
ISBN-13: 978-0071759328
ISBN-10: 0071759328