The book "Brazilian Version of the Breathing Problems Questionnaire (BQP)" offers a comprehensive analysis of the challenges associated with identifying breathing problems in the Brazilian population. It highlights the common ignorance of symptoms such as cough and shortness of breath, particularly among smokers and former smokers, as well as the related difficulties in accessing diagnoses and rehabilitation programs. The Breathing Problems Questionnaire (BPQ) is a specific tool for assessing the quality of life of individuals with chronic respiratory diseases, especially chronic obstructive pulmonary disease (COPD). This book aims to adapt the BPQ to Brazilian culture and evaluate its reproducibility in patients with COPD. The introduction of a locally adapted version of the questionnaire could promote the early detection of respiratory diseases, thereby contributing to better treatment and quality of life for those affected.