[AngelicaDeAlquezar]

Check the "Prisma" series, by the publisher Edinumen. Each volume corresponds to a learning level, according to the European Union standards; A1 is the one for beginners. There is a version for Latin American Spanish called "Prisma Latinoamericano".
Also for Mexican Spanish, there is the series "Aula Latina"; they're also divided by EU levels.
Both series have two books for every level, textbook and workbook. Both can be found on Amazon.

There are many other books (and their reviews) you may find if you Google "Spanish as a foreign language books", but these are the ones I like better because they don't teach 'in English'; they immediately put you in touch with Spanish.

Little piece of advice: don't waste your money buying "501 Verbs in Spanish". This collection of verbs forces you to try and memorize, which is not very useful. A conjugation manual is very useful, so try something like "Conjugación Lengua Española" by Larousse; it will help you follow the logic for conjugating verbs in Spanish.