Yes, English textbooks often provide tips and techniques for effective communication. These tips and techniques aim to improve students' speaking, listening, reading, and writing skills. Some of the common strategies included in English textbooks are:

1. Active Listening:
- Textbooks emphasize the importance of active listening in effective communication.
- They provide exercises and activities to help students develop their listening skills.
- Students are taught to focus on the speaker, ask questions for clarification, and summarize what they have heard.

2. Speaking and Pronunciation:
- Textbooks offer various speaking activities to enhance students' oral communication abilities.
- They may include dialogues, role-plays, and group discussions to encourage students to express their thoughts and ideas.
- Pronunciation exercises and drills are often provided to improve students' clarity and fluency.

3. Vocabulary and Grammar:
- English textbooks introduce new vocabulary and grammar structures in a systematic manner.
- They provide explanations, examples, and exercises to help students expand their vocabulary and use grammar accurately.
- Textbooks often include vocabulary-building exercises, word puzzles, and grammar practice activities.

4. Writing Skills:
- Textbooks focus on developing students' writing skills by providing various writing tasks.
- They teach students how to organize their ideas, structure their writing, and use appropriate language.
- Textbooks also provide models and examples of different types of writing, such as letters, essays, and reports.

5. Reading Comprehension:
- Textbooks include a variety of reading passages, texts, and stories to improve reading comprehension skills.
- They teach students strategies for understanding and analyzing texts, such as skimming, scanning, and making predictions.
- Textbooks often include comprehension questions and activities to assess students' understanding.

6. Cultural Awareness:
- English textbooks often incorporate cultural topics and discussions to develop students' cross-cultural understanding.
- They may include readings, videos, or real-life scenarios that expose students to different cultures and perspectives.
- Textbooks encourage students to appreciate diversity and foster open-mindedness.

Overall, English textbooks provide a comprehensive approach to effective communication by focusing on all language skills and incorporating various strategies, exercises, and activities to enhance students' linguistic abilities.