Johnston Grindstaff

Few children can communicate effectively before eighteen months of age, but sign language can allow baby and parent to reduce the frustration up to a year earlier. With more than 450 full-color photos, text, and sidebars, Knack Baby Sign Language provides a user-friendly, efficient method to lear...

While learning a new language isn’t a “knack” for everyone, Knack American Sign Language finally makes it easy. The clear layout, succinct information, and topic-specific sign language partnered with high-quality photos enable quick learning. By a “bilingual” author whose parents were both deaf, ...