If you're using a particular book to make candles or soap, you may have a dangerous chemistry project on your hands.

John Wiley & Sons Inc. is recalling 5,400 copies of the instruction book "Candle and Soap Making For Dummies," which sold in bookstores and discount department stores nationwide in August and September for about $20.

The directions in the book for making lye instruct users to combine sodium hydroxide and water in an incorrect order. This could cause the mixture to bubble over, posing a burn hazard.

The paperback book is black and yellow and has a photograph of candlesticks and slices of soap. Customers who bought the book can return it to the store where they purchased it for a full refund.

For more information, call John Wiley & Sons at (877) 762-2974 or visit the firm's Web site at www.wiley.com.