Are these prep books good enough? Too many? And how should I start?

Test Preparation SAT Preparation
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<p>plus this
[Eight</a> Multiple Choice SAT Writing Tests: The Companion Workbook to The Ultimate Guide to SAT Grammar: Erica L. Meltzer: 9781478140368: Amazon.com: Books](<a href=“http://www.amazon.com/gp/product/1478140364/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER]Eight”>http://www.amazon.com/gp/product/1478140364/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER)</p>