If you are learning on your own, your method book is doing a teacher's work. It decides what you learn first, what you learn next, and what you never learn at all. Yet most adults choose one the way they choose a novel at an airport: by the cover and the first page.
When I open a method book, I look at different things. Here is the checklist I use.
1. Is it written for adults?
Not just labeled "adult," but actually written for you. Children's methods move slowly, explain little and decorate a great deal. Adults understand quickly and want to know why. A good adult book explains in a sentence what a child's book hides behind a cartoon, and moves on. It also uses music adults want to play, not songs about puppies.
2. Is the print large and clear?
This sounds trivial and is not. Crowded pages with small notes exhaust adult eyes, and tired eyes read badly. Open the book at a page in the middle, put it on a music stand and step back to the bench distance. Can you read it easily?
3. Does it teach you to read, or only to find positions?
Many beginner books place the hands on fixed positions and label the notes with finger numbers. It feels fast at first. Then the music moves to a new position and the reader is lost, because they learned "thumb on middle C" instead of reading the notes. A good book teaches you to recognize notes by where they sit on the staff and by the distance between them, so that reading grows into a skill you can take to any piece. If reading is your sticking point, read the grand staff, explained properly.
4. Does every symbol appear only after it has been explained?
This is the test that most books fail somewhere. Turn the pages and look for a sign that appears before the book has taught it: a dot after a note, a tie, a sharp, a pedal marking, a word in Italian. For a child sitting next to a teacher, that is a small thing; the teacher explains. For an adult alone, every unexplained symbol is a moment of doubt, and doubt is where adults stop practicing. A carefully built book keeps a strict order: nothing appears before its page.
5. Is the left hand treated as an equal?
Many methods give the right hand the melody for months, while the left hand plays a note or two. The result is an adult whose left hand cannot read the bass clef and cannot move. Look for left-hand melodies early and the bass clef taught with the same care as the treble. I wrote about this in the bass clef is not harder, it is just later.
6. Does it teach how to make a sound, not only which key?
Most method books teach which key to press. Few teach how to press it: the weight of the arm, the shape of the hand, the difference between a harsh sound and a singing one. In the tradition I was trained in, this comes first, before any notes, because it shapes everything after. What the Russian school does differently explains why, and what European music schools teach goes further.
7. Is the music real music?
Exercises have their place, but adults need pieces that sound like music, early. Look at the repertoire: is there anything by Bach, Mozart, Tchaikovsky, Kabalevsky, or folk melodies arranged with taste? Or is it page after page of tunes written only to drill one skill? Pieces that sound beautiful are what keep an adult at the piano through the hard weeks.
8. Does it count?
Rhythm is where self-taught adults struggle most, often without knowing it. A good book asks you to count out loud from the first page, and shows you how. Here is how to count without losing your place.
9. Who wrote it?
Turn to the author's biography. Did they train as a performer? Do they play publicly, and can you hear them? Do they teach adults? A method book carries its author's understanding of the instrument, and you cannot learn more from a book than its author knows. That is why I care so much about who taught the person teaching you.
10. Is there sound and video to go with it?
Reading a description of a movement is not the same as seeing it. A book with recordings and video demonstrations lets you check what a page should sound and look like. If yours has none, the free course on this site shows each step at the piano.
Signs you chose the wrong book
You keep skipping pages. If you regularly skip a page because it is confusing or dull, the book's order does not fit you.
New symbols keep surprising you. If you often meet signs you were never taught, the book is relying on a teacher you do not have.
After three months, you still need finger numbers to find the notes. Your book has taught positions, not reading.
You never want to play anything in it for anyone. If none of the pieces sound like music you would share, motivation will run out long before the book does.
None of these mean you failed. They mean the book did. Changing to a better one after a month is not wasted time; staying with the wrong one for a year is.
One book is enough
Adults often buy three methods and finish none of them. Choose one good book and work through it in order, page by page. Add pieces you love alongside it; here is how to choose one you will actually finish. For the books and keyboards I currently recommend, see recommended books, and to begin at the first lesson, start here.