# The Evolution of Massive Stars: Bridging the Gap in the Local Group

## TL;DR

This review discusses how studying massive stars in Local Group galaxies helps reconcile theoretical models with observational data, highlighting challenges in star classification and recent insights.

## Contribution

It provides a comprehensive overview of the difficulties in identifying various massive star types and summarizes current knowledge gained from these studies.

## Key findings

- Identification challenges for OB, supergiants, and Wolf-Rayet stars.
- Insights into massive star evolution from Local Group observations.
- Bridging theory and observations in stellar astrophysics.

## Abstract

The nearby galaxies of the Local Group can act as our laboratories in helping to bridge the gap between theory and observations. In this review we will describe the complications of identifying samples of OB stars, yellow and red supergiants, and Wolf-Rayet stars, and what we have so far learned from these studies.