Most titles are board books designed for little hands; a smaller number are available in hardcover formats as well.
Look for board or padded-board construction with thick, durable pages and softly padded covers. These books are sized for small hands so pages are easier for toddlers to turn.
Common features include touch-and-feel patches and textured areas, as well as peek-a-boo pages (including clear windows) that invite exploration and interactive play.
Many reviewers report that board-format books with thick pages hold up well to mouthing and repeated handling; the sturdy board construction is particularly resistant to wear.
These books are generally compact: heights about 4.9 to 10 inches, widths about 4.8 to 8.3 inches, and thickness (depth) around 0.5 to 1.2 inches.
Most titles in this set list a suggested age range of 0–3 years.