As has been stated numerous times on this and other forums, it would be most advantageous for you to purchase the shop manual for your Legend. If you plan on replacing the timing belt or anything else for that matter, you need the BIBLE.
Acura Integra & Legend Automotive Repair Manual : Acura Integra Models 90-93, Acura Legend Models 91-95 (Haynes Automotive Repair Manual Series)
by Larry Warren, et al (Paperback - September 1999
Then should i get this book, or is there another better book?
Pick up a Helms service/shop manual from helminc.com if you plan on doing that job yourself for around $70-100. Timing belt job on our cars is not for the faint at heart so you have to positively know what your doing or you'll throw a piston or something.