The purpose of this study is to develop and test a series of culturally relevant and appropriate booklets in Spanish, designed to assist Hispanic smokers in quitting smoking and remaining smoke-free.

Study Aim 1: To transcreate the existing English-language 10 "Stop Smoking for Good" booklets and accompanying 9 supportive "My Story" pamphlets into a series of culturally relevant and acceptable materials for Spanish-speaking smokers who prefer to receive health information in Spanish. The adaptation of the intervention materials will be based upon the findings from a systematic formative evaluation employing a heterogeneous group of Hispanic/Latino smokers representing diverse subcultural groups.

Study Aim 2: To test the efficacy of the self-help intervention developed in Study I among Spanish-speaking smokers in a randomized controlled trial. Participants (500) will be randomized to receive the Spanish-language version of the Stop Smoking for Good (SS-SP) intervention or usual care (UC) comprising an existing booklet from NCI. Investigators hypothesize SS-SP will produce higher abstinence rates than UC through 24 months.

Secondary Aim: Test moderator variables to improve targeting the intervention. Moderator analyses will be exploratory, without strong a priori hypotheses.

Inclusion Criteria:

• All Except Study I; Phase I Focus Group: monolingual Spanish, or bilingual Spanish-English and prefer receiving educational health materials in Spanish.
• Study I; Phase I Focus Group Only: Able to speak and read in English and Spanish.
• ≥ 1 year history of smoking
• Smoking ≥ 5 cigarettes per week
• Age ≥ 18 years
• Not currently enrolled in a face-to-face smoking cessation program