S & S Learning Material

Sandpiper

Sara Jordan

Saxon

Scholastic

Schoolhouse Publishing

Schwartz & Wade Books

Scribner Book Company

Scrub Jay Journeys

Secret Mountain

Serendipity Puzzle Co Inc

Shadow Mountain

Share A Care

Shell Education

Shepherd Press

Shiloh

Sierra Club Books

Signet Classics

Siloam Press

Simon & Schuster

Simon Pulse

Simple Pleasures Press

Simply Charlotte Mason

Sing, Spell, Read & Write

Singapore Math

Skyhook Press

Skyhorse Publishing

Sleeping Bear Press

Slinky

Small Pond Press

Smart Games

SmartLab

Smiling Heart Press

SNAP

Sophia Institute Press

Sourcebooks, Inc

Sowers Series Biographies

Spark Publishing

Spectrum

Spelling Power

SpiceBox

Spire

Square Fish

St Martin's

Standard Publishing

Starfire

Sterling Publishing

Stoddart

Storey

Story Warren

Street Smart

Sunburst

Sybex