Frequently Asked Questions
Please read FAQ here, there are some of the frequently asked questions we received and if your question is not answered, or for any other questions about ordering or product setting, please contact us for Support ticket. We will kindly get in touch with you.

Support tickets
For faster response please use the contact form below or inquiry form in product card. Support tickets are handled between 10:30am to 6:30pm (GMT-7). We respond to all emails. If you do not hear back from us within 24 hours write to us to ITA _ ENG )

Submit Errata
Our products are managed with utmost care, but if you find an error, we encourage you to submit these errata using the Errata Submission Form below. We will only get in touch with you to say thanks and all errata are shared with the corresponding author of the book. Please, to submit your errata, describe the product and errata and what page in the book does this errata appear kindly fill the following details or send us mail to Thanks.

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