Absolutely! Thousands of people have learned from these books and you can too. 

Every good teacher will give you a structured approach to learning - breaking things down into simple steps so you can master things bit by bit. This is what these books will do.

A complete beginner will be able to fingerpick  basic patterns within one month if they spend 15 minutes per day to make this kind of progress.

This progress is possible - even if the student has zero musical experience, cannot yet play any chords and has no experience playing other musical instruments.

The best time to learn fingerstyle guitar was 20 years ago. The next best time is today!

As I mentioned above, fingerstyle guitar is an ideal way for complete beginners to learn guitar. It's also great for "failed beginners" - people who tried a few times to learn guitar but it never stuck. The reason it never stuck was because it just took too many hours of practice before getting a musical reward. That's why the failed beginner didn't find it sticking. This changes with fingerstyle because you get the ability to sound musical instantly.

Guitar players who find a plateau and are stuck in their playing also really love fingerpicking because it opens up the world of being able to play your own bassline and melody at the same time (in the intermediate level). This brings a whole new world to guitarists who just needed something new to inspire them.

The answer is really up to you. If you are a visual learner or you like to watch people "do" as your favored way of learning, then my fingerpicking courses can be a great option. 

The Zero to Learn Fingerpicking course would be a great place to start - suitable for complete beginners or for guitarists who are new to fingerpicking.