Each stage introduces new letters/sounds while supporting previously taught phonic letters/sounds and high-frequency words, or sight words.

Book 1: Sam (s, a, t, i, m)
Book 2: Pip (n, o, p)
Book 3: In the Bag (b, c, g, h)
Book 4: Bad Cat! (d, e, f, v)
Book 5: Bun in the Sun (k, l, r, u)
Book 6: Zip and Zap (j, w, z)
Book 7: Bob is not Well (x, y, ff, ll, ss, zz)
Book 8: The Lost Box (VCC, CVCC)
Book 9: Flip and Flop Slip (CCVC)
Book 10: The Stink (CCVCC)

Accompanying reproducible activities for word building, reading, spelling, and comprehension can be found in Phonic Books Dandelion Readers Set 1 Units 1-10 Sam Reading and Writing Activities.