Ingela P. Arrhenius's unmistakable, enchanting artwork combined with an ingenious slider mechanism on every page make this a totally irresistible board book for toddlers who are ready to party. The Peekaboo series, which has sold over 2.7 million copies worldwide, is based on the classic peek-a-boo game and features easy-to-use sliders and a mirror ending to stimulate the senses, build motor skills, and encourage social development. Young children will be captivated by sliders on pages with presents, pinatas, balloons, and even a candle on the cake until--surprise!--a mirror delights as it reveals the cutest party guest around.